County Composition of Metropolitan Areas, 1940-2011
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| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
|---|---|---|---|---|---|---|---|
| 0040 | Abilene, TX | Jones | Jones | Callahan | Taylor | Taylor | |
| Taylor | Taylor | Jones | |||||
| Taylor | |||||||
| 0080 | Akron, OH | Summit | Summit | Portage | Portage | Portage | Portage |
| Summit | Summit | Summit | Summit | ||||
| 0120 | Albany, GA | Dougherty | Dougherty | Dougherty | Dougherty | Dougherty | |
| Lee | Lee | Lee | |||||
| 0160 | Albany-Schenectady-Troy, NY | Albany | Albany | Albany | Albany | Albany | Albany |
| Rensselaer | Rensselaer | Rensselaer | Montgomery | Greene | Montgomery | ||
| Schenectady | Saratoga | Saratoga | Rensselaer | Montgomery | Rensselaer | ||
| Schenectady | Schenectady | Saratoga | Rensselaer | Saratoga | |||
| Schenectady | Saratoga | Schenectady | |||||
| Schenectady | Schoharie | ||||||
| 0200 | Albuquerque, NM | Bernalillo | Bernalillo | Bernalillo | Bernalillo | Bernalillo | Bernalillo |
| Sandoval | Sandoval | ||||||
| Valencia | |||||||
| 0220 | Alexandria, LA | Grant | Rapides | Rapides | |||
| Rapides | |||||||
| 0240 | Allentown-Bethlehem- | Lehigh | Lehigh | Lehigh | Carbon | Carbon | Carbon |
| Easton, PA/NJ | Northampton | Northampton | Northampton | Lehigh | Lehigh | Lehigh | |
| Warren, NJ** | Warren, NJ | Warren, NJ | Northampton | Northampton | Northampton | ||
| Warren, NJ | Warren, NJ | ||||||
| Code | METAREA | 1940-1950 | 1970 | 1980 | 1990 | 2000-2011 | |
| 0280 | Altoona, PA | Blair | Blair | Blair | Blair | Blair | Blair |
| 0320 | Amarillo, TX | Potter | Potter | Potter | Potter | Potter | Potter |
| Randall | Randall | Randall | Randall | Randall | Randall | ||
| 0380 | Anchorage, AK | Anchorage | Anchorage | Anchorage | |||
| 0400 | Anderson, IN | Madison | Madison | Madison | |||
| 0440 | Ann Arbor, MI | Washtenaw | Washtenaw | Washtenaw | Washtenaw | Lenawee | |
| Livingston | |||||||
| Washtenaw | |||||||
| 0450 | Anniston, AL | Calhoun | Calhoun | Calhoun | |||
| 0460 | Appleton-Oshkosh-Neenah, WI | Calumet | Calumet | Calumet | Calumet | ||
| Outagamie | Outagamie | Outagamie | Outagamie | ||||
| Winnebago | Winnebago | Winnebago | Winnebago | ||||
| 0480 | Asheville, NC | Buncombe | Buncombe | Buncombe | Buncombe | Buncombe | Buncombe |
| Madison | Madison | ||||||
| 0500 | Athens, GA | Clarke | Clarke | Clarke | |||
| Jackson | Jackson | Madison | |||||
| Madison | Madison | Oconee | |||||
| Oconee | Oconee | ||||||
| 0520 | Atlanta, GA | Cobb** | Clayton | Clayton | Butts | Barrow | Barrow |
| De Kalb | Cobb | Cobb | Cherokee | Butts | Bartow | ||
| Fulton | De Kalb | De Kalb | Clayton | Cherokee | Carroll | ||
| Fulton | Fulton | Cobb | Clayton | Cherokee | |||
| Gwinnett | Gwinnett | DeKalb | Cobb | Clayton | |||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 0520 | Atlanta, GA (cont.) | Douglas | Coweta | Cobb | |||
| Fayette | DeKalb | Coweta | |||||
| Forsyth | Douglas | DeKalb | |||||
| Fulton | Fayette | Douglas | |||||
| Gwinnet | Forsyth | Fayette | |||||
| Henry | Fulton | Forsyth | |||||
| Newton | Gwinnet | Fulton | |||||
| Paulding | Henry | Gwinnett | |||||
| Rockdale | Newton | Henry | |||||
| Walton | Paulding | Newton | |||||
| Rockdale | Paulding | ||||||
| Spaulding | Pickens | ||||||
| Walton | Rockdale | ||||||
| Spalding | |||||||
| Walton | |||||||
| 0560 | Atlantic City, NJ | Atlantic | Atlantic | Atlantic | Atlantic | Atlantic | |
| Cape May | Cape May | ||||||
| 0580 | Auburn-Opelika, AL | Lee | |||||
| 0600 | Augusta-Aiken, GA/SC | Richmond | Richmond | Richmond | Columbia | Columbia | Columbia, GA |
| Aiken, SC** | Aiken, SC | Aiken, SC | Richmond | McDuffie | McDuffie, GA | ||
| Aiken, SC | Richmond | Richmond, GA | |||||
| Aiken, SC | Aiken, SC | ||||||
| Edgefield, SC | |||||||
| 0640 | Austin, TX | Travis | Travis | Travis | Hays | Hays | Bastrop |
| Travis | Travis | Caldwell | |||||
| Williamson | Williamson | Hays | |||||
| Travis | |||||||
| Williamson | |||||||
| 0680 | Bakersfield, CA | Kern | Kern | Kern | Kern | Kern | |
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 0720 | Baltimore, MD# | Anne Arundel** | Anne Arundel | Anne Arundel | Anne Arundel | Anne Arundel | Anne Arundel |
| Baltimore | Baltimore | Baltimore | Baltimore | Baltimore | Baltimore | ||
| Baltimore City* | Baltimore City* | Baltimore City* | Baltimore City* | Baltimore City* | Baltimore City* | ||
| Carroll | Carroll | Carroll | Carroll | Carroll | |||
| Harford | Harford | Harford | Harford | ||||
| Howard | Howard | Howard | Howard | Howard | |||
| Queen Anne's | Queen Anne's | ||||||
| 0730 | Bangor, ME | Penobscot (p) | Penobscot (p) | Penobscot (p) | |||
| Waldo (p) | Waldo (p) | Waldo (p) | |||||
| 0740 | Barnstable-Yarmouth, MA | Barnstable(p) | |||||
| 0760 | Baton Rouge, LA | E. Baton Rouge** | E. Baton Rouge | Ascension | Ascension | Ascension | |
| E. Baton Rouge | E. Baton Rouge | E. Baton Rouge | |||||
| Livingston | Livingston | Livingston | |||||
| W. Baton Rouge | W. Baton Rouge | W. Baton Rouge | |||||
| 0780 | Battle Creek, MI | Barry | Calhoun | ||||
| Calhoun | |||||||
| 0840 | Beaumont-Port Arthur-Orange, TX | Jefferson | Jefferson | Jefferson | Hardin | Hardin | Hardin |
| Orange | Orange | Jefferson | Jefferson | Jefferson | |||
| Orange | Orange | Orange | |||||
| 0860 | Bellingham, WA | Whatcom | Whatcom | Whatcom | |||
| 0870 | Benton Harbor, MI | Berrien | Berrien | Berrien | |||
| 0880 | Billings, MT | Yellowstone | Yellowstone | Yellowstone | Yellowstone | Yellowstone | |
| 0920 | Biloxi-Gulport, MS | Harrison | Hancock | Hancock | Hancock | ||
| Harrison | Harrison | Harrison | |||||
| Stone | Jackson | ||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 0960 | Binghamton, NY | Broome | Broome | Broome | Broome | Broome | Broome |
| Tioga | Tioga | Tioga | Tioga | ||||
| Susquehanna, PA | Susquehanna, PA | ||||||
| 1000 | Birmingham, AL | Jefferson | Jefferson | Jefferson | Blount | Blount | |
| Shelby | St. Clair | Jefferson | Jefferson | ||||
| Walker | Shelby | St. Clair | St. Clair | ||||
| Walker | Shelby | Shelby | |||||
| Walker | |||||||
| 1010 | Bismark, ND | Burleigh | Burleigh | Burleigh | |||
| Morton | Morton | Morton | |||||
| 1020 | Bloomington, IN | Monroe | Monroe | Monroe | |||
| 1040 | Bloomington-Normal, IL | McLean | McLean | McLean | McLean | ||
| 1080 | Boise City, ID | Ada | Ada | Ada | Ada | ||
| Canyon | |||||||
| 1120 | Boston, MA# | Essex | Essex (p) | Essex (p) | Essex (p) | Bristol (p) | Bristol (p) |
| Middlesex | Middlesex (p) | Middlesex (p) | Middlesex (p) | Essex (p) | Essex (p) | ||
| Norfolk | Norfolk (p) | Norfolk (p) | Norfolk (p) | Middlesex (p) | Middlesex (p) | ||
| Suffolk | Plymouth (p) | Plymouth (p) | Plymouth (p) | Norfolk (p) | Norfolk (p) | ||
| Suffolk | Suffolk | Suffolk | Plymouth (p) | Plymouth (p) | |||
| Suffolk | Suffolk | ||||||
| Worcester (p) | Worcester (p) | ||||||
| Rockingham, NH (p) | |||||||
| 1121 | Lawrence-Haverhil, MA | Essex (p) | Essex (p) | Essex (p) | Essex (p) | Essex(p) | |
| Rockingham, NH (p) | Rockingham, NH (p) | Rockingham, NH (p) | Rockingham, NH (p) | Rockingham, NH (p) | |||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 1122 | Lowell, MA/NH | Middlesex (p) | Middlesex (p) | Middlesex (p) | Middlesex (p) | Middlesex (p) | |
| Hillsborough, NH (p) | Hillsborough, NH (p) | Hillsborough, NH (p) | |||||
| 1123 | Salem-Gloucester, MA | Essex (p) | |||||
| 1140 | Bradenton, FL | Manatee | Manatee | ||||
| 1150 | Bremerton, WA | Kitsap | Kitsap | Kitsap | |||
| 1160 | Bridgeport, CT | Fairfield | Fairfield (p) | Fairfield (p) | Fairfield (p) | Fairfield (p) | Fairfield (p) |
| New Haven (p) | New Haven (p) | New Haven (p) | New Haven (p) | New Haven (p) | |||
| 1200 | Brockton, MA | Plymouth | Bristol (p) | Bristol (p) | Bristol (p) | Bristol (p) | Bristol (p) |
| Norfolk (p) | Norfolk (p) | Norfolk (p) | Norfolk (p) | Norfolk (p) | |||
| Plymouth (p) | Plymouth (p) | Plymouth (p) | Plymouth (p) | Plymouth (p) | |||
| 1240 | Brownsville-Harlingen, TX | Cameron | Cameron | Cameron | Cameron | Cameron | |
| 1260 | Bryan-College Station, TX | Brazos | Brazos | Brazos | Brazos | ||
| 1280 | Buffalo, NY# | Erie | Erie | Erie | Erie | Erie | Erie |
| Niagara | Niagara | Niagara | Niagara | Niagara | |||
| 1281 | Niagara Falls, NY# | Niagara | |||||
| 1300 | Burlington, NC | Alamance | Almanance | ||||
| 1310 | Burlington, VT | Chittenden (p) | Chittenden (p) | Chittenden(p) | |||
| Franklin (p) | Franklin (p) | Franklin(p) | |||||
| Grand Isle (p) | Grand Isle (p) | Grand Isle(p) | |||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 1320 | Canton, OH | Stark | Stark | Stark | Carroll | Carroll | Carroll |
| Stark | Stark | Stark | |||||
| 1350 | Casper, WY | Natrona | Natrona | Natrona | |||
| 1360 | Cedar Rapids, IA | Linn | Linn | Linn | Linn | Linn | |
| 1400 | Champaign-Urbana-Rantoul, IL | Champaign | Champaign | Champaign | Champaign | Champaign | |
| 1440 | Charleston, SC | Charleston | Charleston | Berkeley | Berkeley | Berkeley | Berkeley |
| Charleston | Charleston | Charleston | Charleston | ||||
| Dorchester | Dorchester | Dorchester | |||||
| 1480 | Charleston, WV | Fayette** | Kanawha | Kanawha | Kanawha | Kanawha | Kanawha |
| Kanawha | Putnam | Putnam | Putnam | ||||
| 1520 | Charlotte-Gaston-Rock Hill, NC/SC | Mecklenburg | Mecklenburg | Mecklenburg | Gaston | Cabarrus | Cabarrus |
| Union | Mecklenburg | Gaston | Gaston | ||||
| Union | Lincoln | Lincoln | |||||
| Mecklenburg | Mecklenburg | ||||||
| Rowan | Rowan | ||||||
| Union | Union | ||||||
| York, SC | York, SC | ||||||
| 1521 | Rock Hill, SC | York, SC | |||||
| 1540 | Charlottesville, VA | Albemarle | Albemarle | Albemarle | |||
| Fluvanna | Fluvanna | Fluvanna | |||||
| Greene | Greene | Greene | |||||
| 1560 | Chattanooga, TN/GA | Hamilton | Hamilton | Hamilton | Hamilton | Hamilton | Hamilton |
| Walker, GA | Walker, GA | Walker, GA | Marion | Marion | Marion | ||
| Sequatchie | Sequatchie | Catoosa, GA | |||||
| Catoosa, GA | Catoosa, GA | Dade, GA | |||||
| Dade, GA | Dade, GA | Walker, GA | |||||
| Walker, GA | Walker, GA | ||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 1580 | Cheyenne, WY | Laramie | Laramie | ||||
| 1600 | Chicago, IL# | Cook | Cook | Cook | Cook | Cook | Cook |
| DuPage | DuPage | DuPage | DuPage | DuPage | DeKalb | ||
| Kane** | Kane | Kane | Kane | McHenry | DuPage | ||
| Lake, IL | Lake, IL | Lake, IL | Lake, IL | Grundy | |||
| McHenry** | McHenry | McHenry | McHenry | Kane | |||
| Will** | Will | Will | Will | Kendall | |||
| Lake, IN | Lake | ||||||
| McHenry | |||||||
| Will | |||||||
| 1601 | Aurora-Elgin, IL | Kane | |||||
| Kendell | |||||||
| 1602 | Gary-Hammond, IN# | Lake, IN | Lake, IN | Lake, IN | Lake, IN | Lake | |
| Porter | Porter | Porter | Porter | Porter | |||
| 1603 | Joliet, IL | Grundy | |||||
| Will | |||||||
| 1604 | Lake, IL | Lake, IL | |||||
| 1620 | Chico, CA | Butte | Butte | Butte | |||
| 1640 | Cincinatti-Hamilton, OH/KY/IN | Hamilton | Hamilton | Clermont | Clermont | Clermont | Dearborn, IN |
| Campbell, KY | Campbell, KY | Hamilton | Hamilton | Hamilton | Ohio, IN | ||
| Kenton, KY | Kenton, KY | Warren | Warren | Warren | Boone, KY | ||
| Boone, KY | Boone, KY | Boone, KY | Campbell, KY | ||||
| Campbell, KY | Campbell, KY | Campbell, KY | Gallatin, KY | ||||
| Kenton, KY | Kenton, KY | Kenton, KY | Grant, KY | ||||
| Dearborn, IN | Dearborn, IN | Dearborn, IN | Kenton, KY | ||||
| Pendleton, KY | |||||||
| Brown, OH | |||||||
| Clermont, OH | |||||||
| Hamilton, OH | |||||||
| Warren, OH | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 1660 | Clarksville-Hopkinsville, KY/IN | Montgomery | Montgomery | Montgomery | |||
| Christian | Christian | Christian | |||||
| 1680 | Cleveland, OH | Cuyahoga | Cuyahoga | Cuyahoga | Cuyahoga | Cuyahoga | Ashtabula |
| Lake | Lake | Geauga | Geauga | Geauga | Cuyahoga | ||
| Lake | Lake | Lake | Geauga | ||||
| Medina | Medina | Medina | Lake | ||||
| Lorain | |||||||
| Medina | |||||||
| 1720 | Colorado Springs, CO | El Paso | El Paso | El Paso | El Paso | El Paso | |
| Teller | |||||||
| 1740 | Columbia, MO | Boone | Boone | Boone | Boone | ||
| 1760 | Columbia, SC | Richland | Richland | Lexington | Lexington | Lexington | Lexington |
| Lexington | Richland | Richland | Richland | Richland | |||
| 1800 | Columbus, GA/AL | Chattahoochee** | Chattahoochee | Chattahoochee | Chattahoochee | Chattahoochee | Chattahoochee |
| Muscogee | Muscogee | Muscogee | Muscogee | Muscogee | Muscogee | ||
| Russell, AL** | Russell, AL | Russell, AL | Russell, AL | Russell, AL | Russell, AL | ||
| Harris | |||||||
| 1840 | Columbus, OH | Franklin | Franklin | Delaware | Delaware | Delaware | Delaware |
| Franklin | Fairfield | Fairfield | Fairfield | ||||
| Pickaway | Franklin | Franklin | Franklin | ||||
| Madison | Licking | Licking | |||||
| Pickaway | Madison | Madison | |||||
| Pickaway | Pickaway | ||||||
| Union | |||||||
| 1880 | Corpus Christi, TX | Nueces | Nueces | Nueces | Nueces | Nueces | Nueces |
| San Patricio | San Patricio | San Patricio | San Patricio | ||||
| 1890 | Corvallis, OR | Benton | |||||
| 1900 | Cumberland, MD/WV | Allegany | Allegany | Allegany | |||
| Mineral, WV | Mineral, WV | Mineral, WV | |||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 1920 | Dallas, TX | Dallas | Collin | Collin | Collin | Collin | Collin |
| Dallas | Dallas | Dallas | Dallas | Dallas | |||
| Denton | Denton | Denton | Denton | Denton | |||
| Ellis | Ellis | Ellis | Ellis | Ellis | |||
| Kaufman | Hood | Kaufman | Henderson | ||||
| Rockwall | Johnson | Rockwall | Hunt | ||||
| Kaufman | Kaufman | ||||||
| Parker | Rockwall | ||||||
| Rockwall | |||||||
| Tarrant | |||||||
| Wise | |||||||
| 1921 | Fort Worth-Arlington, TX | Tarrant | Johnson | Johnson | Johnson | Hood | |
| Tarrant | Tarrant | Parker | Johnson | ||||
| Tarrant | Parker | ||||||
| Tarrant | |||||||
| 1930 | Danbury, CT | Fairfield (p) | Fairfield (p) | Fairfield (p) | Fairfield (p) | ||
| Litchfield (p) | Litchfield (p) | Litchfield (p) | |||||
| 1950 | Danville, VA | Pittsylvania | Pittsylvania | Pittsylvania | |||
| Danville city* | |||||||
| 1960 | Davenport-Moline-Rock Island, IA/IL | Scott | Scott | Scott | Scott | Scott | Scott |
| Rock Island, IL | Rock Island, IL | Henry, IL | Henry, IL | Henry, IL | Henry, IL | ||
| Rock Island, Il | Rock Island, Il | Rock Island, Il | Rock Island, Il | ||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 2000 | Dayton-Sprinfield, OH# | Greene** | Greene | Greene | Greene | Clark | Clark |
| Montgomery | Miami | Miami | Miami | Greene | Greene | ||
| Montgomery | Montgomery | Montgomery | Miami | Miami | |||
| Preble | Preble | Montgomery | Montgomery | ||||
| 2001 | Springfield, OH# | Clark | Clark | Champaign | |||
| Clark | |||||||
| 2020 | Daytona Beach, FL | Volusia | Volusia | Volusia | Volusia | ||
| Flagler | |||||||
| 2030 | Decatur, AL | Lawrence | Lawrence | ||||
| Morgan | Morgan | ||||||
| 2040 | Decatur, IL | Macon | Macon | Macon | Macon | Macon | Macon |
| 2080 | Denver, CO# | Adams** | Adams | Adams | Adams | Adams | Adams |
| Arapahoe | Arapahoe | Arapahoe | Arapahoe | Arapahoe | Arapahoe | ||
| Denver | Boulder | Boulder | Boulder | Denver | Denver | ||
| Jefferson | Denver | Denver | Denver | Douglas | Douglas | ||
| Jefferson | Jefferson | Douglas | Jefferson | Jefferson | |||
| Gilpin | |||||||
| Jefferson | |||||||
| 2081 | Boulder-Longmont, CO# | Boulder | Boulder | ||||
| 2120 | Des Moines, IA | Polk | Polk | Polk | Polk | Dallas | Dallas |
| Warren | Polk | Polk | |||||
| Warren | Warren | ||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 2160 | Detroit, MI | MaComb | MaComb | MaComb | Lapeer | Lapeer | Lapeer |
| Oakland | Oakland | Oakland | Livingston | Livingston | Macomb | ||
| Wayne | Wayne | Wayne | MaComb | Macomb | Monroe | ||
| Oakland | Oakland | Oakland | |||||
| St. Clair | Monroe | St. Clair | |||||
| Wayne | Oakland | Wayne | |||||
| St. Clair | |||||||
| Wayne | |||||||
| 2180 | Dothan, AL | Dale | Dale | ||||
| Houston | Houston | ||||||
| 2190 | Dover, DE | Kent | |||||
| 2200 | Dubuque, IA | Dubuque | Dubuque | Dubuque | Dubuque | Dubuque | |
| 2240 | Duluth-Superior, MN/WI | St. Louis | St. Louis | St. Louis | St. Louis | St. Louis | St. Louis |
| Douglas, WI | Douglas, WI | Douglas, WI | Douglas, WI | Douglas, WI | Douglas, WI | ||
| 2281 | Dutchess County, NY | Dutchess | |||||
| 2290 | Eau Claire, WI | Chippewa | Chippewa | Chippewa | |||
| Eau Claire | Eau Claire | Eau Claire | |||||
| 2310 | El Paso, TX | El Paso | El Paso | El Paso | El Paso | El Paso | El Paso |
| 2320 | Elkhart-Goshen, IN | Elkhart | Elkhart | Elkhart | |||
| 2330 | Elmira, NY | Chemung | Chemung | Chemung | |||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 2340 | Enid, OK | Garfield | Garfield | Garfield | |||
| 2360 | Erie, PA | Erie | Erie | Erie | Erie | Erie | Erie |
| 2400 | Eugene-Sprinfield, OR | Lane | Lane | Lane | Lane | Lane | |
| 2440 | Evansville, IN/KY | Vanderburgh | Vanderburgh | Vanderburgh | Gibson | Posey | Posey |
| Henderson, KY | Warrick | Posey | Vanderburgh | Vanderburgh | |||
| Henderson, KY | Vanderburgh | Warrick | Warrick | ||||
| Warrick | Henderson, KY | Henderson, KY | |||||
| Henderson, KY | |||||||
| 2520 | Fargo-Moorhead, ND/MN | Cass | Cass | Cass | Cass | Cass | |
| Clay, MN | Clay, MN | Clay, MN | Clay, MN | Clay, MN | |||
| 2560 | Fayetteville, NC | Cumberland | Cumberland | Cumberland | Cumberland | ||
| 2580 | Fayetteville-Springdale, AR | Benton | Washington | Washington | |||
| Washington | Benton | ||||||
| 2600 | Fitchburg-Leominster, MA | Middlesex (p) | Middlesex (p) | Middlesex (p) | Middlesex (p) | Middlesex (p) | |
| Worcester (p) | Worcester (p) | Worcester (p) | Worcester (p) | Worcester (p) | |||
| 2620 | Flagstaff, AZ-UT | Coconino, AZ | |||||
| Kane, UT | |||||||
| 2640 | Flint, MI | Genesee | Genesee | Genesee | Genesee | Genessee | Genessee |
| Lapeer | Shiawassee | ||||||
| 2650 | Florence, AL | Colbert | Colbert | Colbert | |||
| Lauderdale | Lauderdale | Lauderdale | |||||
| 2660 | Florence, SC | Florence | Florence | Florence | |||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 2670 | Fort Collin-Loveland, CO | Larimer | Larimer | Larimer | |||
| 2680 | Fort Lauderdale-Hollywood | Broward | Broward | Broward | Broward | Broward | |
| Pompano Beach, FL | |||||||
| 2700 | Fort Myers-Cape Coral FL | Lee | Lee | Lee | |||
| 2710 | Fort Piece, FL | Martin | Martin | ||||
| St. Lucie | St. Lucie | ||||||
| 2720 | Fort Smith, AR/OK | Crawford | Crawford, AR | Crawford, AR | Crawford, AR | ||
| Sebastian | Sebastian | Sebastian, AR | Sebastian, AR | Sebastian, AR | |||
| Le Flore, OK | Le Flore, OK | Sequoyah, OK | Sequoyah, OK | ||||
| Sequoyah, OK | Sequoyah, OK | ||||||
| 2750 | Fort Walton Beach, FL | Okaloosa | Okaloosa | ||||
| 2760 | Fort Wayne, IN | Allen | Allen | Allen | Allen | Allen | Allen |
| Adams | DeKalb | Adams | |||||
| De Kalb | Whitley | DeKalb | |||||
| Wells | Huntington | ||||||
| Wells | |||||||
| Whitley | |||||||
| 2840 | Fresno, CA | Fresno | Fresno | Fresno | Fresno | Fresno | Fresno |
| Madera | |||||||
| 2880 | Gadsden, AL | Etowah** | Etowah | Etowah | Etowah | Etowah | Etowah |
| 2900 | Gainesville, FL | Alachua | Alachua | Alachua | Alachua | ||
| Bradford | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 2920 | Galveston-Texas City, TX | Galveston | Galveston | Galveston | Galveston | Galveston | Galveston |
| 2970 | Glens Falls, NY | Warren | Warren | Warren | |||
| Washington | Washington | Washington | |||||
| 2980 | Goldsboro, NC | Wayne | |||||
| 2990 | Grand Forks, ND | Grand Forks | Grand Forks | Grand Forks | |||
| Polk, MN | Polk, MN | ||||||
| 2995 | Grand Junction, CO | Mesa | |||||
| 3000 | Grand Rapids, MI | Kent | Kent | Kent | Kent | Kent | Allegan |
| Ottawa | Ottawa | Ottawa | Kent | ||||
| Muskegon | |||||||
| Ottawa | |||||||
| 3040 | Great Falls, MT | Cascade | Cascade | Cascade | Cascade | ||
| 3060 | Greeley, CO | Weld | Weld | Weld | |||
| 3080 | Green Bay, WI | Brown** | Brown | Brown | Brown | Brown | Brown |
| 3120 | Greensboro-Winston-Salem-Highpoint, NC# | Guilford | Guilford | Forsyth | Davidson | Davidson | Alamance |
| Guilford | Forsyth | Davie | Davidson | ||||
| Randolph | Guilford | Forsyth | Davie | ||||
| Yadkin | Randolph | Guilford | Forsyth | ||||
| Stokes | Randolph | Guilford | |||||
| Yadkin | Stokes | Randolph | |||||
| Yadkin | Stokes | ||||||
| Yadkin | |||||||
| 3121 | Winston-Salem, NC# | Forsyth | Forsyth | ||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 3150 | Greenville, NC | Pitt | |||||
| 3160 | Greenville-Spartanburg-Anderson, SC | Greenville | Greenville | Greenville | Greenville | Greenville | Anderson |
| Pickens | Pickens | Pickens | Cherokee | ||||
| Spartanburg | Spartanburg | Greenville | |||||
| Spartanburg | Pickens | ||||||
| Spartanburg | |||||||
| 3161 | Anderson, SC | Anderson | Anderson | ||||
| 3180 | Hagerstown, MD | Washington | Washington | Washington | |||
| 3200 | Hamilton-Middletown, OH | Butler | Butler | Butler | Butler | Butler | Butler |
| 3240 | Harrisburg-Leban-Carlisle, PA | Cumberland | Cumberland | Cumberland | Cumberland | Cumberland | Cumberland |
| Dauphin | Dauphin | Dauphin | Dauphin | Dauphin | Dauphin | ||
| Perry | Perry | Lebanon | Lebanon | ||||
| Perry | Perry | ||||||
| 3280 | Hartford, CT | Hartford | Hartford (p) | Hartford (p) | Hartford (p) | Hartford (p) | Hartford (p) |
| MIddlesex | Litchfield (p) | Litchfield (p) | Litchfield (p) | ||||
| Tolland | Middlesex (p) | Middlesex (p) | Middlesex (p) | ||||
| New London (p) | New London (p) | New London (p) | |||||
| Tolland (p) | Tolland (p) | Tolland (p) | |||||
| Windham(p) | |||||||
| 3281 | Bristol, CT | Hartford (p) | Hartford (p) | Hartford (p) | |||
| Litchfield (p) | Litchfield (p) | Litchfield (p) | |||||
| 3282 | Middletown, CT | Middlesex (p) | |||||
| 3283 | New Britain, CT | Hartford (p) | Hartford (p) | Hartford (p) | Hartford, (p) | ||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 3285 | Hattiesburg, MS | Forrest | |||||
| Lamar | |||||||
| 3290 | Hickory-Morgantown, NC | Alexander | Alexander | Alexander | |||
| Catawba | Burke | Burke | |||||
| Catawba | Caldwell | ||||||
| Catawba | |||||||
| 3320 | Honolulu, HI | Honolulu** | Honolulu | Honolulu | Honolulu | Honolulu | Honolulu |
| 3350 | Houma, LA | Lafourche | Lafourche | ||||
| Terrebonne | Terrebonne | ||||||
| 3360 | Houston, TX | Harris | Harris | Brazoria | Brazoria | Fort Bend | Chambers |
| Fort Bend | Fort Bend | Harris | Fort Bend | ||||
| Harris | Harris | Liberty | Harris | ||||
| Liberty | Liberty | Montgomery | Liberty | ||||
| Montgomery | Montgomery | Waller | Montgomery | ||||
| Waller | |||||||
| Waller | |||||||
| 3361 | Brazoria, TX | Brazoria | Brazoria | ||||
| 3400 | Huntington-Ashland, WV/KY/OH | Cabell | Cabell | Cabell | Cabell | Cabell | Cabell |
| Wayne | Wayne | Wayne | Wayne | Wayne | Wayne | ||
| Boyd, KY | Boyd, KY | Boyd, KY | Boyd, KY | Boyd, KY | Boyd, KY | ||
| Lawrence, OH | Lawrence, OH | Lawrence, OH | Greenup, KY | Carter, KY | Carter, KY | ||
| Lawrence, OH | Greenup, KY | Greenup, KY | |||||
| Lawrence, OH | Lawrence, OH | ||||||
| 3440 | Huntsville, AL | Madison | Limestone | Limestone | Madison | Madison | |
| Madison | Madison | Limestone | |||||
| Marshall | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 3480 | Indianapolis, IN | Marion | Marion | Boone | Boone | Boone | Boone |
| Hamilton | Hamilton | Hamilton | Hamilton | ||||
| Hancock | Hancock | Hancock | Hancock | ||||
| Hendricks | Hendricks | Hendricks | Hendricks | ||||
| Johnson | Johnson | Johnson | Johnson | ||||
| Marion | Marion | Marion | Madison | ||||
| Morgan | Morgan | Morgan | Marion | ||||
| Shelby | Shelby | Shelby | Morgan | ||||
| Shelby | |||||||
| 3500 | Iowa City, IA | Johnson | Johnson | Johnson | |||
| 3520 | Jackson, MI | Jackson | Jackson | Jackson | Jackson | Jackson | Jackson |
| 3560 | Jackson, MS | Hinds | Hinds | Hinds | Hinds | Hinds | Hinds |
| Rankin | Rankin | Madison | Madison | ||||
| Rankin | |||||||
| 3580 | Jackson, TN | Chester | |||||
| Madison | |||||||
| 3590 | Jacksonville, FL | Duval | Duval | Duval | Baker | Clay | Clay |
| Clay | Duval | Duval | |||||
| Duval | Nassau | Nassau | |||||
| Nassau | St. Johns | St. Johns | |||||
| St. Johns | |||||||
| 3600 | Jacksonville, NC | Onslow | Onslow | Onslow | |||
| 3610 | Jamestown-Dunkirk, NY | Chautauqua | Chautauqua | ||||
| 3620 | Janesville-Beloit, WI | Rock | Rock | Rock | |||
| 3660 | Johnson-Kinsport-Bristol, TN/VA | Carter | Carter | Carter | |||
| Hawkins | Hawkins | Hawkins | |||||
| Sullivan | Sullivan | Sullivan | |||||
| Unicoi | Unicoi | Unicoi | |||||
| Washington | Washington | Washington | |||||
| Scott, VA | Scott, VA | Scott, VA | |||||
| Washington, VA | Washington, VA | Washington, VA | |||||
| Bristol City, VA* | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 3680 | Johnstown, PA | Cambria | Cambria | Cambria | Cambria | Cambria | Cambria |
| Somerset | Somerset | Somerset | Somerset | Somerset | Somerset | ||
| 3700 | Jonesboro, AR | Craighead | |||||
| 3710 | Joplin, MO | Jasper | Jasper | Jasper | |||
| Newton | Newton | Newton | |||||
| 3720 | Kalamazoo, MI | Kalamazoo | Kalamazoo | Kalamazoo | Kalamazoo | Kalamazoo | Kalamazoo |
| Van Buren | Calhoun | ||||||
| Van Buren | |||||||
| 3740 | Kankakee, IL | Kankakee | Kankakee | Kankakee | |||
| 3760 | Kansas City, MO/KS | Cass** | Cass | Cass | Cass | Johnson, KS | |
| Clay** | Clay | Clay | Clay | Clay | Leavenworth, KS | ||
| Jackson | Jackson | Jackson | Jackson | Jackson | Miami, KS | ||
| Johnson, KS | Johnson, KS | Platte | Platte | Lafayette | Wyandotte, KS | ||
| Wyandotte, KS | Wyandotte, KS | Johnson, KS | Ray | Platte | Cass | ||
| Wyandotte, KS | Johnson, KS | Ray | Clay | ||||
| Wyandotte, KS | Johnson, KS | Clinton | |||||
| Leavenworth, KS | Jackson | ||||||
| Miami, KS | Lafayette | ||||||
| Wyandotte, KS | Platte | ||||||
| Ray | |||||||
| 3800 | Kenosha, WI | Kenosha | Kenosha | Kenosha | Kenosha | Kenosha | Kenosha |
| 3810 | Kileen-Temple, TX | Bell | Bell | Bell | |||
| Coryell | Coryell | Coryell | |||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 3840 | Knoxville, TN | Anderson** | Anderson | Anderson | Anderson | Anderson | Anderson |
| Blount** | Blount | Blount | Blount | Blount | Blount | ||
| Knox | Knox | Knox | Knox | Grainger | Knox | ||
| Union | Union | Jefferson | Loudoun | ||||
| Knox | Sevier | ||||||
| Sevier | Union | ||||||
| Union | |||||||
| 3850 | Kokomo, IN | Howard | Howard | Howard | |||
| Tipton | Tipton | Tipton | |||||
| 3870 | La Crosse, WI | La Crosse | La Crosse | La Crosse | La Crosse | ||
| Houston, MN | |||||||
| 3880 | Lafayette, LA | Lafayette | Lafayette | Lafayette | Acadia | ||
| St. Martin | Lafayette | ||||||
| St. Landry | |||||||
| St. Martin | |||||||
| 3920 | Lafayette, IN | Tippecanoe | Tippecanoe | Tippecanoe | Tippecanoe | ||
| Clinton | |||||||
| 3960 | Lake Charles, LA | Calcasieu | Calcasieu | Calcasieu | Calcasieu | Calcasieu | |
| 3980 | Lakeland-Winter Haven, FL | Polk | Polk | Polk | |||
| 4000 | Lancaster, PA | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster |
| 4040 | Lansing-East Lansing, MI | Ingham | Clinton | Clinton | Clinton | Clinton | Clinton |
| Eaton | Eaton | Eaton | Eaton | Eaton | |||
| Ingham | Ingham | Ingham | Ingham | Ingham | |||
| Ionia | |||||||
| 4080 | Laredo, TX | Webb** | Webb | Webb | Webb | Webb | Webb |
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 4100 | Las Cruces, NM | Dona Ana | Dona Ana | Dona Ana | |||
| 4120 | Las Vegas, NV | Clark | Clark | Clark | Clark | Clark | |
| Mohave, AZ | |||||||
| Nye, NV | |||||||
| 4150 | Lawrence, KS | Douglas | Douglas | Douglas | |||
| 4200 | Lawton, OK | Comanche | Comanche | Comanche | Comanche | Comanche | |
| 4240 | Lewiston-Auburgn, ME | Androscoggin | Androscoggin | Androscoggin | Androscoggin | Androscoggin (p) | |
| 4280 | Lexington-Fayette, KY | Fayette** | Fayette | Fayette | Bourbon | Bourbon | Bourbon |
| Clark | Clark | Clark | |||||
| Fayette | Fayette | Fayette | |||||
| Jessamine | Jessanine | Jessanine | |||||
| Scott | Madison | Madison | |||||
| Woodford | Scott | Scott | |||||
| Woodford | Woodford | ||||||
| 4320 | Lima, OH | Allen** | Allen | Allen | Allen | Allen | Allen |
| Putnam | Auglaize | Auglaize | Auglaize | ||||
| Van Wert | Putnam | ||||||
| Van Wert | |||||||
| 4360 | Lincoln, NE | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster | Lancaster |
| 4400 | Little Rock-North Little Rock, AR | Pulaski | Pulaski | Pulaski | Pulaski | Faulkner | Faulkner |
| Saline | Saline | Lanoke | Lanoke | ||||
| Pulaski | Pulaski | ||||||
| Saline | Saline | ||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 4410 | Longbranch-Asbury Park, NJ | Monmouth | |||||
| 4420 | Longview-Marshall, TX | Gregg | Gregg | Gregg | |||
| Harrison | Harrison | Harrison | |||||
| Upshur | |||||||
| 4440 | Lorain-Elyria, OH | Lorain** | Lorain | Lorain | Lorain | Lorain | |
| 4480 | Los Angeles-Long Beach, CA# | Los Angeles | Los Angeles | Los Angeles | Los Angeles | Los Angeles | Los Angeles |
| Orange | |||||||
| 4481 | Anaheim-Santa, Ana, CA | Orange | Orange | Orange | |||
| 4482 | Orange County, CA | Orange | |||||
| 4520 | Louisville, KY/IN | Jefferson | Jefferson | Jefferson | Bullitt | Bullitt | Bullitt |
| Clark, IN | Clark, IN | Clark, IN | Jefferson | Jefferson | Jefferson | ||
| Floyd, IN | Floyd, IN | Floyd, IN | Oldham | Oldham | Oldham | ||
| Clark, IN | Shelby | Scott, IN | |||||
| Floyd, IN | Clark, IN | Clark, IN | |||||
| Floyd, IN | Floyd, IN | ||||||
| Harrison, IN | Harrison, IN | ||||||
| 4600 | Lubbock, TX | Lubbock** | Lubbock | Lubbock | Lubbock | Lubbock | Lubbock |
| 4640 | Lynchburg, VA | Amherst | Amherst | Amherst | Amherst | Amherst | |
| Campbell | Campbell | Appomattox | Campbell | Campbell | |||
| Campbell | Bedford | ||||||
| Bedford city* | |||||||
| Lynchburg city* | |||||||
| 4680 | Macon, GA | Bibb | Bibb | Bibb | Bibb | Bibb | Bibb |
| Houston** | Houston | Houston | Houston | Houston | Houston | ||
| Jones | Jones | Jones | |||||
| Twiggs | Peach | Peach | |||||
| Twiggs | |||||||
| 4720 | Madison, WI | Dane | Dane | Dane | Dane | Dane | Dane |
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 4760 | Manchester, NH | Hillsborough | Hillsborough (p) | Hillsborough (p) | Hillsborough (p) | Hillsborough (p) | Hillsborough (p) |
| Merrimack (p) | Merrimack (p) | Merrimack (p) | Merrimack (p) | ||||
| Rockingham (p) | Rockingham (p) | Rockingham (p) | |||||
| 4800 | Mansfield, OH | Richland | Richland | Richland | Richland | ||
| Crawford | |||||||
| 4880 | McAllen-Edinburg-Mission, TX | Hidalgo | Hidalgo | Hidalgo | Hidalgo | ||
| 4890 | Medford-Ashland, OR | Jackson | Jackson | Jackson | |||
| 4900 | Melbourn-Titusville, FL | Brevard | Brevard | Brevard | |||
| 4920 | Memphis, TN/AR/MS | Shelby | Shelby | Shelby | Shelby | Shelby | Shelby |
| Crittenden, AR | Tipton | Tipton | Tipton | ||||
| Crittendon, AR | Crittendon, AR | Crittendon, AR | |||||
| De Soto, MS | De Soto, MS | De Soto, MS | |||||
| Fayette | |||||||
| 4940 | Merced, CA | Merced | Merced | ||||
| 5000 | Miami, FL | Dade | Dade | Dade | Dade | Dade | Miami-Dade |
| 5040 | Midland, TX | Midland | Midland | Midland | Midland | ||
| 5080 | Milwaukee-Waukesha, WI | Milwaukee | Milwaukee | Milwaukee | Milwaukee | Milwaukee | Milwaukee |
| Waukesha | Ozaukee | Ozaukee | Ozaukee | Ozaukee | |||
| Washington | Washington | Washington | Washington | ||||
| Waukesha | Waukesha | Waukesha | Waukesha | ||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 5120 | Minneapolis-St. Paul, MN | Anoka** | Anoka | Anoka | Anoka | Anoka | Anoka |
| Dakota** | Dakota | Dakota | Carver | Carver | Carver | ||
| Hennepin | Hennepin | Hennepin | Chisago | Chisago | Chisago | ||
| Ramsey | Ramsey | Ramsey | Dakota | Dakota | Dakota | ||
| Washington | Washington | Hennepin | Hennepin | Hennepin | |||
| Ramsey | Isanti | Isanti | |||||
| Scott | Ramsey | Ramsey | |||||
| Washington | Scott | Scott | |||||
| Wright, MN | Sherburne | Sherburne | |||||
| St. Croix, WI | Washington | Washington | |||||
| Wright | Wright | ||||||
| St. Croix, WI | St. Croix, WI | ||||||
| Pierce, WI | |||||||
| 5140 | Missoula, MT | Missoula | |||||
| 5160 | Mobile, AL | Mobile | Mobile | Baldwin | Baldwin | Baldwin | Baldwin |
| Mobile | Mobile | Mobile | Mobile | ||||
| 5170 | Modesto, CA | Stanislaus | Stanislaus | Stanislaus | Stanislaus | ||
| 5190 | Monmouth-Ocean, NJ | Monmouth | Monmouth | ||||
| Ocean | Ocean | ||||||
| 5200 | Monroe, LA | Ouachita | Ouachita | Ouachita | Ouachita | Ouachita | |
| 5240 | Montgomery, AL | Montgomery | Montgomery | Elmore | Autauga | Autauga | Autauga |
| Montgomery | Elmore | Elmore | Elmore | ||||
| Montgomery | Montgomery | Montgomery | |||||
| 5280 | Muncie, IN | Delaware** | Delaware | Delaware | Delaware | Delaware | Delaware |
| 5320 | Muskegon, MI | Muskegon | Muskegon | Muskegon | Muskegon | ||
| Oceana | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 5330 | Myrtle Beach, SC | Horry | |||||
| 5340 | Naples, FL | Collier | Collier | ||||
| 5350 | Nashua, NH | Hillsborough (p) | Hillsborough (p) | Hillsborough (p) | Hillsborough (p) | ||
| Rockingham (p) | |||||||
| 5360 | Nashville, TN | Davidson | Davidson | Davidson | Cheathem | Cheathem | Cheathem |
| Sumner | Davidson | Davidson | Davidson | ||||
| Williamson | Dickson | Dickson | Dickson | ||||
| Robertson | Robertson | Robertson | |||||
| Rutherford | Rutherford | Rutherford | |||||
| Sumner | Sumner | Sumner | |||||
| Williamson | Williamson | Williamson | |||||
| Wilson | Wilson | Wilson | |||||
| 5400 | New Bedford, MA | Bristol (p) | Bristol (p) | Bristol (p) | Bristol (p) | Bristol (p) | |
| Plymouth (p) | Plymouth (p) | Plymouth (p) | Plymouth (p) | Plymouth (p) | |||
| 5460 | New Brunswick-Perth Amboy-Sayreville, NJ | Middlesex, NJ | |||||
| 5480 | New Haven-Meriden, CT | New Haven (p) | New Haven (p) | New Haven (p) | Middlesex, (p) | Middlesex, (p) | Middlesex, (p) |
| New Haven (p) | New Haven (p) | New Haven (p) | |||||
| 5520 | New London-Norwich, CT/RI | New London (p) | New London (p) | Middlesex (p) | New London (p) | Middlesex, (p) | |
| New London (p) | Windham (p) | New London (p) | |||||
| Washington, RI (p) | Washington, RI (p) | Windham (p) | |||||
| Washington, RI (p) | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 5560 | New Orleans, LA | Jefferson | Jefferson | Jefferson | Jefferson | Jefferson | Jefferson |
| Orleans | Orleans | Orleans | Orleans | Orleans | Orleans | ||
| St. Bernard** | St. Bernard | St. Bernard | St. Bernard | St. Bernard | St. Bernard | ||
| St. Tammany | St. Tammany | St. Charles | St. Charles | ||||
| St. John the Baptist | St. John the Baptist | ||||||
| St. Tammany | St. Tammany | ||||||
| Plaquemines | |||||||
| St. James | |||||||
| 5600 | New York, NY# | Bronx | Bronx | Bronx | Bronx | Bronx | Bronx |
| Kings | Kings | Kings | Kings | Kings | Kings | ||
| Nassau | Nassau | New York | New York | New York | New York | ||
| New York | New York | Queens | Putnam | Putnam | Putnam | ||
| Queens | Queens | Richmond | Queens | Queens | Queens | ||
| Richmond | Richmond | Nassau | Richmond | Richmond | Richmond | ||
| Rockland | Rockland | Rockland | Rockland | Rockland | Rockland | ||
| Westchester | Suffolk | Suffolk | Westchester | Westchester | Westchester | ||
| Bergen, NJ | Westchester | Westchester | Bergen, NJ | ||||
| Essex, NJ | |||||||
| Hudson, NJ | |||||||
| Middlesex, NJ | |||||||
| Morris, NJ | |||||||
| Passaic, NJ | |||||||
| Somerset, NJ | |||||||
| Suffolk | |||||||
| Union, NJ | |||||||
| 5601 | Nassau-Suffolk, NY | Nassau | Nassau | Nassau | |||
| Suffolk | Suffolk | Suffolk | |||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 5602 | Bergen-Passaic/Paterson-Clifton, NJ# | Bergen, NJ | Bergen, NJ | Passaic, NJ | Bergen, NJ | Bergen | |
| Passaic, NJ | Passaic, NJ | Passaic, NJ | Passaic | ||||
| 5603 | Jersey City, NJ | Hudson, NJ | Hudson, NJ | Hudson, NJ | Hudson, NJ | Hudson | |
| 5604 | Middlesex-Somerset-Hunt, NJ | Hunterdon | Hunterdon | ||||
| Middlesex, NJ | Middlesex | ||||||
| Somerset, NJ | Somerset | ||||||
| 5605 | Newark, NJ | Essex, NJ | Essex, NJ | Essex, NJ | Essex, NJ | Essex | |
| Morris, NJ | Morris, NJ | Morris, NJ | Morris, NJ | Morris | |||
| Union, NJ | Union, NJ | Somerset, NJ | Sussex | Sussex | |||
| Union, NJ | Union, NJ | Union | |||||
| Warren | |||||||
| 5640 | Newark, OH | Licking | |||||
| 5660 | Newburgh, NY | Orange, NY | Orange | ||||
| Pike, PA | |||||||
| 5720 | Norfolk-Virginia Beach-Newport News, VA# | Norfolk | Norfolk | Norfolk City* | Norfolk City* | Gloucester | Currituck, NC |
| Norfolk City* | Norfolk City* | Portsmouth City* | Portsmouth City* | James City | Gloucester | ||
| Portsmouth City* | Portsmouth City* | S. Norfolk City* | S. Norfolk City* | Norfolk City* | Isle of Wight | ||
| Princess Anne | Princess Anne | Currituck, NC | Portsmouth City* | James City | |||
| S. Norfolk City* | S. Norfolk City* | S. Norfolk City* | Mathews | ||||
| Virginia Beach city | York | York | |||||
| Chesapeake city | |||||||
| Norfolk city | |||||||
| Poquoson city | |||||||
| Portsmouth city | |||||||
| Suffolk city | |||||||
| Virginia Beach city | |||||||
| Williamsburg city | |||||||
| 5721 | Newport News-Hampton |
Newport News city | Newport News city | Newport News city | |||
| Hampton city | Hampton city | Hampton city | |||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 5760 | Norwalk, CT | Fairfield (p) | Fairfield (p) | Fairfield (p) | Fairfield (p) | ||
| 5790 | Ocala, FL | Marion | Marion | Marion | |||
| 5800 | Odessa, TX | Ector | Ector | Ector | Ector | Ector | |
| Midland | |||||||
| 5880 | Oklahoma City, OK | Oklahoma | Canadian | Canadian | Canadian | Canadian | Canadian |
| Cleveland | Cleveland | Cleveland | Cleveland | Cleveland | |||
| Oklahoma | Oklahoma | McClain | Logan | Logan | |||
| Oklahoma | McClain | McClain | |||||
| Pottawatomie | Oklahoma | Oklahoma | |||||
| Pottawatomie | Pottawatomie | ||||||
| 5910 | Olympia, WA | Thurston | Thurston | Thurston | |||
| 5920 | Omaha, NE/IA | Douglas | Douglas | Douglas | Douglas | Douglas | Douglas |
| Sarpy | Sarpy | Sarpy | Sarpy | Sarpy | Sarpy | ||
| Pottawattamie, IA | Pottawattamie, IA | Pottawattamie, IA | Pottawattamie, IA | Washington | Washington | ||
| Pottawattamie, IA | Pottawattamie, IA | ||||||
| Cass, NE | |||||||
| 5950 | Orange, NY | Orange, NY | |||||
| 5960 | Orlando, FL | Orange** | Orange | Orange | Orange | Orange | Orange |
| Seminole | Seminole | Osceola | Osceola | Osceola | |||
| Seminole | Seminole | Seminole | |||||
| Lake | |||||||
| 5990 | Owensboro, KY | Daviess | Daviess | Daviess | Daviess | Daviess | |
| 6010 | Panama City, FL | Bay | Bay | Bay | |||
| 6020 | Parkersburg-Marietta WV/OH | Wirt | Wood | Wood | |||
| Wood | Washington, OH | Washington, OH | |||||
| Washington, OH | |||||||
| 6030 | Pascagoula-Moss Point, MS | Jackson | Jackson | ||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 6080 | Pensacola, FL | Escambia | Escambia | Escambia | Escambia | Escambia | |
| Santa Rosa | Santa Rosa | Santa Rosa | Santa Rosa | Santa Rosa | |||
| 6120 | Peoria, IL | Peoria | Peoria | Peoria | Peoria | Peoria | Peoria |
| Tazewell | Tazewell | Tazewell | Tazewell | Tazewell | Tazewell | ||
| Woodford | Woodford | Woodford | Woodford | ||||
| 6160 | Philadelphia, PA/NJ | Bucks | Bucks, PA | Bucks, PA | Bucks, PA | Bucks, PA | Bucks, PA |
| Chester** | Chester, PA | Chester, PA | Chester, PA | Chester, PA | |||
| Delaware | Delaware, PA | Delaware, PA | Delaware, PA | Delaware, PA | Delaware, PA | ||
| Montgomery | Montgomery, PA | Montgomery, PA | Montgomery, PA | Montgomery, PA | Montgomery, PA | ||
| Philadelphia | Philadelphia, PA | Philadelphia, PA | Philadelphia, PA | Philadelphia, PA | Philadelphia, PA | ||
| Burlington, NJ | Burlington, NJ | Burlington, NJ | Burlington, NJ | Burlington, NJ | Burlington, NJ | ||
| Camden, NJ | Camden, NJ | Camden, NJ | Camden, NJ | Camden, NJ | Camden, NJ | ||
| Gloucester, NJ | Gloucester, NJ | Gloucester, NJ | Gloucester, NJ | Gloucester, NJ | Gloucester, NJ | ||
| Salem, NJ | |||||||
| 6200 | Phoenix-Mesa, AZ | Maricopa | Maricopa | Maricopa | Maricopa | Maricopa | Maricopa |
| Pinal | |||||||
| 6240 | Pine Bluff, AR | Jefferson | Jefferson | Jefferson | Jefferson | ||
| 6280 | Pittsburgh, PA | Allegheny | Allegheny | Allegheny | Allegheny | Allegheny | Allegheny |
| Beaver | Beaver | Beaver | Beaver | Fayette | Fayette | ||
| Washington** | Washington | Washington | Washington | Washington | Washington | ||
| Westmoreland | Westmoreland | Westmoreland | Westmoreland | Westmoreland | Westmoreland | ||
| Beaver | |||||||
| Butler | |||||||
| 6281 | Beaver County, PA | Beaver | |||||
| 6320 | Pittsfield, MA | Berkshire (p)** | Berkshire (p) | Berkshire (p) | Berkshire (p) | Berkshire (p) | Berkshire (p) |
| 6340 | Pocatello, ID | Bannock | |||||
| 6400 | Portland, ME | Cumberland (p) | Cumberland (p) | Cumberland (p) | Cumberland (p) | Cumberland (p) | Cumberland (p) |
| York (p) | York (p) | York (p) | |||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 6440 | Portland-Vancouver, OR/WA | Clackamas | Clackamas | Clackamas | Clackamas | Clackamas | Clackamas |
| Multnomah | Multnomah | Multnomah | Multnomah | Multnomah | Multnomah | ||
| Washington** | Washington | Washington | Washington | Washington | Washington | ||
| Clark, WA | Clark, WA | Clark, WA | Clark, WA | Yamhill | Yamhill | ||
| Columbia | |||||||
| Clark, WA | |||||||
| 6441 | Vancouver, WA | Clark | |||||
| 6450 | Portsmouth-Dover-Rochester,NH/ME | Rockingham (p) | Rockingham (p) | Rockingham (p) | |||
| Strafford (p) | Strafford (p) | Strafford (p) | |||||
| York, ME (p) | York, ME (p) | York, ME (p) | |||||
| 6460 | Poughkeepsie, NY | Dutchess | Dutchess | ||||
| 6480 | Providence, RI | Bristol | Bristol (p) | Bristol | Bristol (p) | Bristol | Bristol |
| Kent | Kent (p) | Kent (p) | Kent (p) | Kent (p) | Kent (p) | ||
| Providence (p) | Newport, RI (p) | Newport, RI (p) | Newport, RI (p) | Newport (p) | Newport (p) | ||
| Providence (p) | Providence (p) | Providence (p) | Providence (p) | Providence (p) | |||
| Washington (p) | Washington (p) | Washington (p) | Washington (p) | Washington (p) | |||
| Bristol, MA (p) | Bristol, MA (p) | Bristol, MA (p) | Bristol, MA (p) | ||||
| Norfolk, MA (p) | Norfolk, MA (p) | Norfolk, MA (p) | |||||
| Worcester, MA (p) | Worcester, MA (p) | Worcester, MA (p) | |||||
| 6481 | Fall River, MA/RI | Bristol, MA** (p) | Bristol, MA (p) | Bristol, MA (p) | Bristol, MA (p) | Bristol, MA (p) | |
| Newport (p) | Newport (p) | Newport (p) | Newport (p) | ||||
| 6482 | Pawtuckett, RI/MA | Providence (p) | |||||
| Bristol, MA (p) | |||||||
| Norfolk, MA (p) | |||||||
| Worcester, MA (p) | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 6520 | Provo-Orem, UT | Utah | Utah | Utah | Utah | Utah | |
| 6560 | Pueblo, CO | Pueblo | Pueblo | Pueblo | Pueblo | Pueblo | Pueblo |
| 6580 | Punta Gorda, FL | Charlotte | |||||
| 6600 | Racine, WI | Racine | Racine | Racine | Racine | Racine | Racine |
| 6640 | Raleigh-Durham, NC | Wake** | Wake | Wake | Durham | Durham | Durham |
| Orange | Franklin | Franklin | |||||
| Wake | Orange | Orange | |||||
| Wake | Wake | ||||||
| Johnston | |||||||
| Chatham | |||||||
| 6641 | Durham, NC | Durham | Durham | Durham | |||
| Orange | |||||||
| 6660 | Rapid City, SD | Pennington | Pennington | ||||
| 6680 | Reading, PA | Berks | Berks | Berks | Berks | Berks | Berks |
| 6690 | Redding, CA | Shasta | Shasta | Shasta | |||
| 6720 | Reno, NV | Washoe | Washoe | Washoe | Washoe | Washoe | |
| 6740 | Richland-Kennewick-Pasco, WA | Benton | Benton | Benton | |||
| Franklin | Franklin | Franklin | |||||
| 6760 | Richmond-Petersburg, VA# | Chesterfield | Chesterfield | Chesterfield | Charles City | Charles City | Charles City |
| Henrico | Hanover | Hanover | Chesterfield | Chesterfield | Chesterfield | ||
| Richmond City* | Richmond City* | Henrico | Goochland | Dinwiddie | Dinwiddie | ||
| Richmond City* | Hanover | Goochland | Goochland | ||||
| Henrico | Hanover | Hanover | |||||
| New Kent | Henrico | Henrico | |||||
| Powhatan | New Kent | New Kent | |||||
| Richmond City* | Powhatan | Powhatan | |||||
| Prince George | Prince George | ||||||
| Richmond City* | Richmond City* | ||||||
| Colonial Heights City* | |||||||
| Hopewell City* | |||||||
| Petersburg City* | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 6761 | Petersburg-Colonial Heights-Hopewell, VA | Dinwiddie | Dinwiddie | ||||
| Prince George | Prince George | ||||||
| Hopewell, VA | |||||||
| 6780 | Riverside-San Bernadino, CA# | Riverside | Riverside | Riverside | Riverside | Riverside | |
| San Bernardino | San Bernardino | San Bernardino | San Bernardino | San Bernardino | |||
| 6781 | San Bernardino, CA# | San Bernadino ** | |||||
| 6800 | Roanoke, VA | Roanoke | Roanoke | Roanoke | Botetourt | Botetourt | Botetourt |
| Roanoke City * | Roanoke City * | Roanoke City * | Craig | Roanoke | Roanoke | ||
| Roanoke | Roanoke City * | Roanoke City * | |||||
| Roanoke City * | Salem City* | ||||||
| 6820 | Rochester, MN | Olmsted | Olmsted | Olmsted | Olmsted | ||
| 6840 | Rochester, NY | Monroe | Monroe | Livingston | Livingston | Livingston | Livingston |
| Monroe | Monroe | Monroe | Monroe | ||||
| Orleans | Ontario | Ontario | Ontario | ||||
| Wayne | Orleans | Orleans | Orleans | ||||
| Wayne | Wayne | Wayne | |||||
| Genesee | |||||||
| 6880 | Rockford, IL | Winnebago | Winnebago | Boone | Boone | Boone | Boone |
| Winnebago | Winnebago | Winnebago | Winnebago | ||||
| Ogle | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 6895 | Rocky Mount, NC | Edgecombe | |||||
| Nash | |||||||
| 6920 | Sacramento, CA | Sacramento | Sacramento | Placer | Placer | El Dorado | El Dorado |
| Sacramento | Sacramento | Placer | Placer | ||||
| Yolo | Yolo | Sacramento | Sacramento | ||||
| Yolo | |||||||
| 6960 | Saginaw-Bay City-Midland, MI | Saginaw | Saginaw | Saginaw | Saginaw | Bay | Bay |
| Midland | Midland | ||||||
| Saginaw | Saginaw | ||||||
| 6961 | Bay City, MI | Bay** | Bay | Bay | Bay | ||
| 6980 | St. Cloud, MN | Benton | Benton | Benton | |||
| Sherburne | Sherburne | Stearns | |||||
| Stearns | Stearns | ||||||
| 7000 | St. Joseph, MO | Buchanan | Buchanan | Buchanan | Andrew | Buchanan | Andrew |
| Buchanan | Buchanan | ||||||
| 7040 | St. Louis, MO/IL# | St. Charles | St. Charles | Franklin | Franklin | Franklin | Franklin |
| St. Louis | St. Louis | Jefferson | Jefferson | Jefferson | Jefferson | ||
| St. Louis City* | St. Louis City* | St. Charles | St. Charles | St. Charles | St. Charles | ||
| Madison, IL | Madison, IL | St. Louis | St. Louis | St. Louis | St. Louis | ||
| St. Clair, IL | St. Clair, IL | St. Louis City* | St. Louis City* | St. Louis City* | St. Louis City* | ||
| Jefferson | Madison, IL | Clinton, IL | Clinton, IL | Clinton, IL | |||
| St. Clair, IL | Madison, IL | Jersey, IL | Jersey, IL | ||||
| Monroe, IL | Madison, IL | Madison, IL | |||||
| St. Clair, IL | Monroe, IL | Monroe, IL | |||||
| St. Clair, IL | St. Clair, IL | ||||||
| Crawford (p) | |||||||
| Lincoln | |||||||
| Warren | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 7080 | Salem, OR | Marion | Marion | Marion | Marion | ||
| Polk | Polk | Polk | Polk | ||||
| 7120 | Salinas-Sea Side-Monterey, CA | Monterey | Monterey | Monterey | Monterey | ||
| 7140 | Salisbury-Concord, NC | Cabarrus | |||||
| Rowan | |||||||
| 7160 | Salt Lake City-Ogden, UT# | Salt Lake | Salt Lake | Davis | Davis | Davis | Davis |
| Salt Lake | Salt Lake | Salt Lake | Salt Lake | ||||
| Tooele | Weber | Weber | |||||
| Weber | |||||||
| 7161 | Ogden, UT# | Weber** | Weber** | ||||
| 7200 | San Angelo, TX | Tom Green** | Tom Green | Tom Green | Tom Green | Tom Green | Tom Green |
| 7240 | San Antonio, TX | Bexar | Bexar | Bexar | Bexar | Bexar | Bexar |
| Guadalupe | Comal | Comal | Comal | ||||
| Guadalupe | Guadalupe | Guadalupe | |||||
| Wilson | |||||||
| 7320 | San Diego, CA | San Diego | San Diego | San Diego | San Diego | San Diego | San Diego |
| 7360 | San Francisco, CA# | Marin | Marin | Marin | Marin | Marin | Marin |
| San Francisco | San Francisco | San Francisco | San Francisco | San Francisco | San Francisco | ||
| San Mateo | San Mateo | San Mateo | San Mateo | San Mateo | San Mateo | ||
| Alameda | Alameda | Alameda | Alameda | ||||
| Contra Costa | Contra Costa | Contra Costa | Contra Costa | ||||
| Solano** | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 7361 | Oakland, CA# | Alameda | Alameda | ||||
| Contra Costa | Contra Costa | ||||||
| 7362 | Vallejo-Fairfield-Napa, CA# | Napa | Napa | Napa | Napa | ||
| Solano | Solano | Solano | Solano | ||||
| 7400 | San Jose, CA | Santa Clara | Santa Clara | Santa Clara | Santa Clara | Santa Clara | Santa Clara |
| 7442 | San Juan-Caguas-Arecibo, PR | San Juan-Bayamon | San Juan-Bayamon | San Juan-Bayamon | San Juan-Caguas | San Juan-Caguas-Arecibo | |
| Bayamon | Bayamon | Bayamon M | Barceloneta | San Juan-Bayamon | |||
| Carolina | Canovanas | Bayamon | Aguas Buenas | ||||
| Catano | Catano | Carolina | Canovanas | Barceloneta | |||
| Guaynabo | Guaynabo | Catano | Carolina | Bayamon | |||
| Trujillo | Trujillo | Guaynabo | Catano | Canovanas | |||
| Loiza | Corozal | Carolina | |||||
| Toa Baja | Dorado | Catano | |||||
| Trujillo | Fajardo | Ceiba | |||||
| Florida | Comerio | ||||||
| Guaynabo | Corozal | ||||||
| Humacao | Dorado | ||||||
| Juncos | Fajardo | ||||||
| Las Piedras | Florida | ||||||
| Loiza | Guaynabo | ||||||
| Luquillo | Humacao | ||||||
| Manati | Juncos | ||||||
| Naranjito | Las Piedras | ||||||
| Rio Grande | Loiza | ||||||
| San Juan | Luquillo | ||||||
| Toa Alta | Manati | ||||||
| Toa Baja | Morovis | ||||||
| Trujillo Al | Naguabo | ||||||
| Vega Alta | Naranjito | ||||||
| Vega Baja | Rio Grande | ||||||
| Aguas Buenas | San Juan | ||||||
| Caguas | Toa Alta | ||||||
| Cayey | Toa Baja | ||||||
| Cidra | Trujillo Alt | ||||||
| Gurabo | Vega Alta | ||||||
| San Lorenzo | Vega Baja | ||||||
| Yabucoa | |||||||
| Caguas | |||||||
| Cayey | |||||||
| Cidra | |||||||
| Gurabo | |||||||
| San Lorenzo | |||||||
| Arecibo | |||||||
| Camuy | |||||||
| Hatillo | |||||||
| 7460 | San Luis Obispo-Atascadero-Paso Robles, CA | San Luis Obispo | |||||
| 7470 | Santa Barbara-San Maria-Lompac, CA | Santa Barbara | Santa Barbara | Santa Barbara | Santa Barbara | Santa Barbara | |
| 7480 | Santa Cruz, CA | Santa Cruz | Santa Cruz | Santa Cruz | Santa Cruz | ||
| 7490 | Santa Fe, NM | Los Alamos | Los Alamos | ||||
| Santa Fe | Santa Fe | ||||||
| 7500 | Santa Rosa-Petaluma, CA | Sonoma | Sonoma | Sonoma | Sonoma | ||
| 7510 | Sarasota | Sarasota | Sarasota | Sarasota | |||
| Manatee | |||||||
| 7520 | Savannah, GA | Chatham | Chatham | Chatham | Bryan | Chatham | Chatham |
| Chatham | Effingham | Effingham | |||||
| Effingham | Bryan | ||||||
| 7560 | Scranton-Wilkes-Barre-Hazleton, PA | Lackawanna | Lackawanna | Lackawanna | Lackawanna | Columbia | Columbia |
| Luzerne | Lackawanna | Lackawanna | |||||
| Monroe | Luzerne | Luzerne | |||||
| Monroe | Wyoming | ||||||
| Wyoming | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 7561 | Wilkes-Barre-Hazleton, PA | Luzerne | Luzerne | Luzerne | |||
| 7600 | Seattle-Everett, WA | King | King | King | King | King | King |
| Snohomish | Snohomish | Snohomish | Snohomish | Snohomish | |||
| Island | |||||||
| 7610 | Sharon, PA | Mercer | Mercer | Mercer | |||
| 7620 | Sheboygan, WI | Sheboygan | Sheboygan | Sheboygan | |||
| 7640 | Sherman- | Grayson | Grayson | Grayson | |||
| Denison, TX | |||||||
| 7680 | Shreveport, LA | Caddo | Caddo | Bossier | Bossier | Bossier | Bossier |
| Bossier | Caddo | Caddo | Caddo | ||||
| Webster | Webster | ||||||
| 7720 | Sioux City, IA/NE | Woodbury | Woodbury | Woodbury | Woodbury | Woodbury | Woodbury |
| Dakota | Dakota | Dakota | Dakota | ||||
| 7760 | Sioux Falls, SD | Minnehaha** | Minnehaha | Minnehaha | Minnehaha | Minnehaha | Minnehaha |
| Lincoln | |||||||
| 7800 | South Bend, IN | St. Joseph | St. Joseph | Marshall | Marshall | St. Joseph | St. Joseph |
| St. Joseph | St. Joseph | ||||||
| 7840 | Spokane, WA | Spokane | Spokane | Spokane | Spokane | Spokane | Spokane |
| 7880 | Springfield, IL | Sangamon | Sangamon | Sangamon | Menard | Menard | Menard |
| Sangamon | Sangamon | Sangamon | |||||
| 7920 | Springfield, MO | Greene | Greene | Greene | Christian | Christian | Christian |
| Greene | Greene | Greene | |||||
| Webster | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 8000 | Springfield-Holyoke, MA | Hampden | Hamden (p) | Hamden (p) | Hamden (p) | Hamden (p) | Hamden (p) |
| Hampshire | Hampshire (p) | Hampshire (p) | Hampshire (p) | Hampshire (p) | Hampshire (p) | ||
| Worcester (p) | Worcester (p) | Worcester (p) | Franklin (p) | ||||
| Tolland, CT (p) | Tolland, CT (p) | Tolland, CT (p) | |||||
| 8040 | Stamford, CT | Fairfield (p) | Fairfield (p) | Fairfield (p) | Fairfield (p) | Fairfield (p) | |
| 8050 | State College, PA | Centre | Centre | Centre | |||
| 8080 | Steubenville-Weirton, OH/WV | Jefferson | Jefferson | Jefferson | Jefferson | Jefferson | |
| Brooke, WV | Brooke, WV | Brooke, WV | Brooke, WV | Brooke, WV | |||
| Hancock, WV | Hancock, WV | Hancock, WV | Hancock, WV | Hancock, WV | |||
| 8120 | Stockton, CA | San Joaquin | San Joaquin | San Joaquin | San Joaquin | San Joaquin | San Joaquin |
| 8140 | Sumter, SC | Sumter | |||||
| 8160 | Syracuse, NY | Onondaga | Madison | Madison | Madison | Madison | Madison |
| Onondaga | Onondaga | Onondaga | Onondaga | Onondaga | |||
| Oswego | Oswego | Oswego | Oswego | Oswego | |||
| Cayuga | |||||||
| 8200 | Tacoma, WA | Pierce | Pierce | Pierce | Pierce | Pierce | Pierce |
| 8240 | Tallahassee, FL | Leon | Leon | Gasden | Gasden | ||
| Wakullah | Leon | Leon | |||||
| 8280 | Tampa-St. Petersburg-Clearwater, FL | Hillsborough | Hillsborough | Hillsborough | Hillsborough | Hernando | Hernando |
| Pinellas | Pinellas | Pinellas | Pasco | Hillsborough | Hillsborough | ||
| Pinellas | Pasco | Pasco | |||||
| Pinellas | Pinellas | ||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 8320 | Terre Haute, IN | Vigo | Vigo | Clay | Clay | Clay | Clay |
| Sullivan | Sullivan | Vigo | Vigo | ||||
| Vermillion | Vermillion | Vermillion | |||||
| Vigo | Vigo | ||||||
| 8360 | Texarkana, TX/AR | Bowie | Bowie | Bowie | Bowie | Bowie | |
| Miller, AR | Miller, AR | Little River, AR | Miller, AR | Miller, AR | |||
| Miller, AR | |||||||
| 8400 | Toledo, OH/MI | Lucas | Lucas | Lucas | Fulton | Fulton | Fulton |
| Wood | Lucas | Lucas | Lucas | ||||
| Monroe, MI | Ottawa | Wood | Wood | ||||
| Wood | |||||||
| Monroe, MI | |||||||
| 8440 | Topeka, KS | Shawnee | Shawnee | Shawnee | Jefferson | Shawnee | Shawnee |
| Osage | |||||||
| Shawnee | |||||||
| 8480 | Trenton, NJ | Mercer | Mercer | Mercer | Mercer | Mercer | Mercer |
| 8520 | Tucson, AZ | Pima | Pima | Pima | Pima | Pima | |
| 8560 | Tulsa, OK | Tulsa | Creek | Creek | Creek | Creek | Creek |
| Osage | Osage | Mayes | Osage | Osage | |||
| Tulsa | Tulsa | Osage | Rogers | Rogers | |||
| Rogers | Tulsa | Tulsa | |||||
| Tulsa | Wagoner | Wagoner | |||||
| Wagoner | |||||||
| 8600 | Tuscaloosa, AL | Tuscaloosa | Tuscaloosa | Tuscaloosa | Tuscaloosa | Tuscaloosa | |
| 8640 | Tyler, TX | Smith | Smith | Smith | Smith | Smith | |
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 8680 | Utica-Rome, NY | Herkimer | Herkimer | Herkimer | Herkimer | Herkimer | Herkimer |
| Oneida | Oneida | Oneida | Oneida | Oneida | Oneida | ||
| 8730 | Ventura-Oxnard, CA | Ventura | Ventura | Ventura | Ventura | ||
| 8750 | Victoria, TX | Victoria | Victoria | Victoria | |||
| 8760 | Vineland-Millville-Bridgetown, NJ | Cumberland | Cumberland | Cumberland | Cumberland | ||
| 8780 | Visalia-Tulare-Porterville, CA | Tulare | Tulare | Tulare | |||
| 8800 | Waco, TX | McLennan | McLennan | McLennan | McLennan | McLennan | McLennan |
| 8840 | Washington DC, MD/VA/WV# | Washington, DC | Washington, DC | Washington, DC | Washington, DC | Washington, DC | District of Columbia |
| Montgomery, MD | Montgomery, MD | Montgomery, MD | Charles, MD | Calvert, MD | Calvert, MD | ||
| Prince George's, MD | Prince George's, MD | Prince George's, MD | Montgomery, MD | Charles, MD | Charles, MD | ||
| Alexandria City* | Alexandria City* | Alexandria City* | Prince George's, MD | Frederick, MD | Frederick, MD | ||
| Arlington, VA | Arlington, VA | Arlington, VA | Alexandria City* | Montgomery, MD | Montgomery, MD | ||
| Fairfax, VA | Fairfax, VA | Fairfax, VA | Arlington, VA | Prince George's, MD | Prince George's, MD | ||
| Falls Church City, VA | Falls Church City, VA | Loudoun, VA | Fairfax, VA | Alexandria City* | Arlington, VA | ||
| Prince William, VA | Loudoun, VA | Arlington, VA | Clarke, VA | ||||
| Fairfax City, VA | Prince William, VA | Fairfax, VA | Culpeper, VA | ||||
| Loudoun, VA | Fairfax, VA | ||||||
| Prince William, VA | Fauquier, VA | ||||||
| Stafford, VA | King George, VA | ||||||
| Loudoun, VA | |||||||
| Prince William, VA | |||||||
| Spotsylvania, VA | |||||||
| Stafford, VA | |||||||
| Warren, VA | |||||||
| Alexandria city, VA | |||||||
| Fairfax city, VA | |||||||
| Falls Church city, VA | |||||||
| Fredericksburg city, VA | |||||||
| Manassas city, VA | |||||||
| Manassas Park city, VA | |||||||
| Berkeley, WV | |||||||
| Jefferson, WV | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 8880 | Waterbury, CT | Litchfield (p) | Litchfield (p) | Litchfield (p) | Litchfield (p) | Litchfield (p) | |
| New Haven (p) | New Haven (p) | New Haven (p) | New Haven (p) | New Haven (p) | |||
| 8920 | Waterloo-Cedar Falls, IA | Blackhawk | Blackhawk | Blackhawk | Blackhawk | Blackhawk | |
| Bremer | |||||||
| 8940 | Wausau, WI | Marathon | Marathon | Marathon | |||
| 8960 | West Palm Beach-Boca Raton, FL | Palm Beach | Palm Beach | Palm Beach | Palm Beach | Palm Beach | |
| 9000 | Wheeling, WV/OH | Brooke** | Marshall | Marshall | Marshall | Marshall | Marshall |
| Hancock** | Ohio | Ohio | Ohio | Ohio | Ohio | ||
| Ohio | Belmont, OH | Belmont, OH | Belmont, OH | Belmont, OH | Belmont, OH | ||
| Belmont, OH | |||||||
| Jefferson, OH** | |||||||
| 9040 | Wichita, KS | Sedgwick | Sedgwick | Butler | Butler | Butler | Butler |
| Sedgwick | Sedgwick | Harvey | Harvey | ||||
| Sedgwick | Sedgwick | ||||||
| 9080 | Wichita Falls, TX | Wichita** | Archer | Archer | Clay | Wichita | Archer |
| Wichita | Wichita | Wichita | Wichita | ||||
| 9140 | Williamsport, PA | Lycoming | Lycoming | Lycoming | Lycoming | ||
| 9160 | Wilmington, DE/NJ/MD | New Castle | New Castle | New Castle | New Castle | New Castle | New Castle |
| Salem, NJ | Salem, NJ | Salem, NJ | Salem, NJ | Salem, NJ | Cecil, MD | ||
| Cecil, MD | Cecil, MD | Cecil, MD | |||||
| 9200 | Wilmington, NC | Brunswick | Brunswick | New Hanover | Brunswick | ||
| New Hanover | New Hanover | New Hanover | |||||
| 9240 | Worcester, MA | Worcester | Worcester (p) | Worcester (p) | Worcester (p) | Worcester (p) | Worcester (p) |
| Windham, CT (p) | |||||||
| Hampden, MA (p) | |||||||
| Code | METAREA | 1940-1950 | 1960 | 1970 | 1980 | 1990 | 2000-2011 |
| 9260 | Yakima, WA | Yakima | Yakima | Yakima | Yakima | ||
| 9270 | Yolo, CA | Yolo | |||||
| 9280 | York, PA | York | York | Adams | Adams | Adams | York |
| York | York | York | |||||
| 9320 | Youngstown-Warren, OH | Mahoning | Mahoning | Mahoning | Mahoning | Mahoning | Columbiana |
| Trumbull | Trumbull | Trumbull | Trumbull | Trumbull | Mahoning | ||
| Merce, PA** | Trumbull | ||||||
| 9340 | Yuba City, CA | Sutter | Sutter | Sutter | |||
| Yuba | Yuba | Yuba | |||||
| 9360 | Yuma, AZ | Yuma | Yuma |
Table Notes:
* Independent city, not politically incorporated within a county.
** County became part of metropolitan area in 1950.
(p) Part of county.
# Area-Specific Notes:
Baltimore, MD Baltimore became an independent Cityin the 1850s.
Bergen/Passaic, NJ In 1970, Bergen and Passiac counties were included in the Paterson/Clifton, NJ metro area. Passaic County remained in the Paterson/Clifton metro in 1980 but Bergen County was defined as part of the New York metro area. In 1990, the two counties were defined as their own metro area.
Boston, MA The 1940 and 1950 samples use New England County Metropolitan Areas. All other samples use towns and cities rather than counties.
Boulder, CO Boulder was included in the Denver metro area in 1970 and 1980 but was a separate Primary Metro in 1990.
Buffalo, NY The Census Bureau identified Niagara Falls as a Primary Metro in 1990. From 1920 to 1980 Niagara Falls is separate metropolitan area.
Chicago, IL Gary-Hammond, IN is designated as a separate metropolitan area in 1970.
Denver, CO In 1900 Denver was a part of Arapahoe County but annexed territory from that county and became independent by 1910. The only area meeting the criteria for metropolitan status in 1910 and 1920 was the Cityof Denver. Boulder was included in the Denver metropolitan area in 1970 and 1980 but was made a separate Primary Metro in 1990.
Gary-Hammond, IN See Chicago, above.
Greensboro-Winston Salem-Highpoint, NC Winston-Salem and Greensboro are separate metropolitan areas from 1930 to 1950 and were combined from 1970 to 1990.
Los Angeles, CA San Bernardino was included in Los Angeles in 1930 but became an independent metropolitan area from 1930 through 1990.
New York, NY The New York metropolitan area has substantial rearrangement of counties due to the splitting of the area into smaller Primary Metros. This causes some counties, such as Bergen, to move among multiple metro areas over the last forty years (see Bergen/Passaic, above).
Norfolk-Virginia Beach-Newport News, VA Norfolk and Portsmouth had become independent cities by 1900 and South Norfolk by 1930.
Paterson/Clifton, NJ In 1970, Bergen and Passiac counties were included in the Paterson/Clifton, NJ metro area. Passaic County remained in the Paterson/Clifton metro in 1980 but Bergen County was defined as part of the New York metro area. In 1990, the two counties were defined as their own metro area.
Richmond, VA The independent Cityof Manchester is included in the Richmond metropolitan area in 1900 and 1910. Richmond annexed Manchester between 1900 and 1910. Since Richmond also annexed part of Henrico County, the unannexed remainder of Henrico County failed to meet the criteria for inclusion in the metro area in 1920.
Riverside-San Bernardino, CA See Los Angeles, above.
St. Louis, MO The Cityof St. Louis was an independent Cityby 1880.
Salt Lake City, UT Ogden, UT, was a separate metropolitan area in 1940 and 1950 but was combined with Salt Lake City in 1980.
San Francisco, CA Alameda and Contra Costa counties were split from the San Francisco metropolitan area in 1990 and became the Oakland metropolitan area. Solano County was part of the San Francisco metro area in 1940 and 1950, failed to meet metro criteria in 1960, but emerged as the separate metro area of Vallejo from 1970 to 1990.
Springfield, OH Springfield was a separate metropolitan area from 1920 to 1980 but was included in the Dayton metropolitan area in 1990.
Vallejo, CA See San Francisco, above.
Washington, DC Alexandria was an independent Cityby 1900. Arlington County changed its name from Alexandria County between 1910 and 1920.
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