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MIGCITY5
City of residence 5 years ago

Description

MIGCITY5 reports the city where the respondent resided 5 years ago, if that city could be identified under the confidentiality requirements of a given sample.

For the 1980 census, the universe is dependent on the variable, MIGSAMP.

Codes

MIGCITY5 is a 4-digit numeric code reporting the city where the respondent resided 5 years ago, if that city could be identified under the confidentiality requirements of a given sample. MIGCITY5 specific variable codes for missing, edited, or unidentified observations, observations not applicable (N/A), observations not in universe (NIU), top and bottom value coding, etc. are provided below by Census year (and data sample if specified).

MIGCITY5 Specific Variable Codes
0000 = N/A and Not Identifiable
0001 = Not Ascertained (1940)

See the codes of CITY for list of MIGCITY5 codes.

Comparability

For 1940, MIGCITY5 only identifies the central cities of select metropolitan areas (those meeting the confidentiality requirements outlined in CITY and METAREA). For 1980-2000, MIGCITY5 is constructed using the method described in CITY (i.e., derived from the PUMA or county group of residence 5 years ago, see the PUMA variable description for more information on PUMAs). In all years, numerous large cities cannot be identified. In 1990 and 2000, a number of cities identified in CITY are not identified in MIGCITY5.

The following cities in each of the 1990 samples are not uniquely identifiable within the three digits of detail provided in MIGPUMA:

Metro Sample State Sample
 Code   City    Code   City  
 0010    Akron, OH    0010    Akron, OH  
 0130    Allentown, PA    0130    Allentown, PA  
 2090    Erie, PA    0190    Anaheim, CA  
 2390    Fullerton, CA    2090    Erie, PA  
 2930    Huntington Beach, CA    2390    Fullerton, CA  
 3490    Las Vegas, NV    2930    Huntington Beach, CA  
 4130    Milwaukee, WI    3490    Las Vegas, NV  
 5330    Philadelphia, PA    4130    Milwaukee, WI  
 5370    Pittsburgh, PA    5350    Phoenix, AZ  
 5430    Plano, TX    5370    Pittsburgh, PA  
     5890    Riverside, CA  
     6810    Sunnyvale, CA  

In the 2000 samples, the PUMAs (Public Use Microdata Areas) defined for migration purposes were often much larger areas than PUMAs defined for classifying current residence. (See the 2000 PUMA-to-MIGPUMA conversion table for details.) Consequently, MIGCITY5 identifies only 8 cities in the 1 percent sample of census 2000 and 30 cities in the 5 percent sample of the U.S. census 2000; MIGCITY5 identifies only 6 cities in the 1 percent sample of the Puerto Rican census 2000 and 31 cities in the 5 percent sample of the Puerto Rican census in 2000.

In 1980, responses to questions about migration were coded for only half the persons included in the IPUMS. These cases provide accurate proportional distributions but not correct absolute numbers for the population as a whole. For correct absolute numbers, users should select cases coded as 2 in MIGSAMP and multiply by 2 as well as by PERWT.

Universe

  • 1940: Persons age 5+.
  • 1980: Persons age 5+ who lived in a different house in the U.S. 5 years ago, reported; 50 percent of cases (see MIGSAMP); not available for Puerto Rico.
  • 1990: Persons age 5+ who lived in a different house in the U.S. 5 years ago, reported;not available for Puerto Rico.
  • 2000: Persons age 5+ who lived in a different house 5 years ago, reported.

Availability

United States
  • 2016: --
  • 2015: --
  • 2014: --
  • 2013: --
  • 2012: --
  • 2011: --
  • 2010: --
  • 2009: --
  • 2008: --
  • 2007: --
  • 2006: --
  • 2005: --
  • 2004: --
  • 2003: --
  • 2002: --
  • 2001: --
  • 2000: 5%; 1% old; 1% unwt; 1%
  • 1990: 5% state; 1% metro; 1% unwt; 3% elderly
  • 1980: 5% state; 1% metro
  • 1970: --
  • 1960: --
  • 1950: --
  • 1940: All samples
  • 1930: --
  • 1920: --
  • 1910: --
  • 1900: --
  • 1880: --
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2016: --
  • 2015: --
  • 2014: --
  • 2013: --
  • 2012: --
  • 2011: --
  • 2010: --
  • 2009: --
  • 2008: --
  • 2007: --
  • 2006: --
  • 2005: --
  • 2000: All samples
  • 1990: --
  • 1980: --
  • 1970: --
  • 1930: --
  • 1920: --
  • 1910: --

Flags

QMIGCIT5  QMIGCOGR  QMIGPLC5 

Editing Procedure

There is no editing procedure available for this variable.