1990 PUMAs: Detailed Composition and Boundary Files

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Detailed composition of 1990 PUMAs

These maps show the Public Use Microdata Area (PUMA) boundaries for the 1990 state (5%) and metro (1%) samples. In some states, one or more PUMAs include noncontiguous parts. These PUMAs are noted on the maps with "(part)" next to the PUMA number. Noncontiguous PUMAs occur for several reasons. On the metro (1%) sample, every effort was made to keep metropolitan and non-metropolitan areas separate. On the state (5%) sample, it was important to keep meaningful socioeconomic or planning areas together. In sparsely populated areas, it may have been necessary to delineate PUMAs with noncontiguous parts to meet minimum population criteria when the adjacent counties belonged to either a metropolitan area or local planning area.

PUMAs which cross state lines appear on the State "99" File, also available on the IPUMS website. Users can locate areas by searching the file under the appropriate MSA/PMSA codes.

The elderly (3%) sample has the same geographical components as the state (5%) sample. The Census Bureau equated the State Planning Service Areas (PSAs) to the state PUMAs whenever the two were equal. If the two were not equal, the PSA code is 000.

* The PUMA map of Delaware has never been made available and is missing from the list.

The detailed composition of the PUMA data has been broken down into state-specific tables for both the 1% metro and 5% state samples in the list above. For users who may want to analyze the PUMA composition data in a statistics package, the detailed composition for each PUMA sample is also described in two rectangular Excel files: 1% Sample PUMAs and 5% Sample PUMAs).

State State and Metro Sample Maps Detailed Composition (1% metro sample) Detailed Composition (5% state smpl, 3% elderly smpl)
Alabama map 1% metro sample 5% state sample
Alaska map 1% metro sample 5% state sample
Arizona map 1% metro sample 5% state sample
Arkansas map 1% metro sample 5% state sample
California map 1% metro sample 5% state sample
Colorado map 1% metro sample 5% state sample
Connecticut map 1% metro sample 5% state sample
Delaware N/A* 1% metro sample 5% state sample
District of Columbia map 1% metro sample 5% state sample
Florida map 1% metro sample 5% state sample
Georgia map 1% metro sample 5% state sample
Hawaii map 1% metro sample 5% state sample
Idaho map 1% metro sample 5% state sample
Illinois map 1% metro sample 5% state sample
Indiana map 1% metro sample 5% state sample
Iowa map 1% metro sample 5% state sample
Kansas map 1% metro sample 5% state sample
Kentucky map 1% metro sample 5% state sample
Louisiana map 1% metro sample 5% state sample
Maine map 1% metro sample 5% state sample
Maryland map 1% metro sample 5% state sample
Massachusetts map 1% metro sample 5% state sample
Michigan map 1% metro sample 5% state sample
Minnesota map 1% metro sample 5% state sample
Mississippi map 1% metro sample 5% state sample
Missouri map 1% metro sample 5% state sample
Montana map 1% metro sample 5% state sample
Nebraska map 1% metro sample 5% state sample
Nevada map 1% metro sample 5% state sample
New Hampshire map 1% metro sample 5% state sample
New Jersey map 1% metro sample 5% state sample
New Mexico map 1% metro sample 5% state sample
New York map 1% metro sample 5% state sample
North Carolina map 1% metro sample 5% state sample
North Dakota map 1% metro sample 5% state sample
Ohio map 1% metro sample 5% state sample
Oklahoma map 1% metro sample 5% state sample
Oregon map 1% metro sample 5% state sample
Pennsylvania map 1% metro sample 5% state sample
Rhode Island map 1% metro sample 5% state sample
South Carolina map 1% metro sample 5% state sample
South Dakota map 1% metro sample 5% state sample
Tennessee map 1% metro sample 5% state sample
Texas map 1% metro sample 5% state sample
Utah map 1% metro sample 5% state sample
Vermont map 1% metro sample 5% state sample
Virginia map 1% metro sample 5% state sample
Washington map 1% metro sample 5% state sample
West Virginia map 1% metro sample 5% state sample
Wisconsin map 1% metro sample 5% state sample
Wyoming map 1% metro sample 5% state sample
Puerto Rico map NOTE: Puerto Rico data is not currently available

Boundary files for 1990 PUMAs:

Two sets of nationwide Boundary files are available for download in .zip format:

  1. 1990 1% PUMA boundary file
  2. 1990 5% PUMA boundary file

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