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MIGCOUNTY1
County of residence 1 year ago

Description

For respondents who lived in a different residence 1 year before the survey date, MIGCOUNTY1 identifies the county (or county equivalent) where the respondent lived at that time, if the prior residence was in an identifiable county.

MIGCOUNTY1 uses the Federal Information Processing Standard (FIPS) coding scheme, as is used by COUNTYFIP. FIPS county codes are state-dependent, so MIGCOUNTY1 must be combined with state codes (see MIGPLAC1) to distinguish counties located in different states.

MIGCOUNTY5 provides analogous information for 2000 census samples, using a 5-year rather than a 1-year reference period.

MIGCOUNTY provides analogous information for 1940 full-count microdata, using a 5-year reference period and ICPSR county codes (as used by COUNTYICP) rather than FIPS codes.

The source PUMS files do not directly identify the county of prior residence. IPUMS instead identifies counties, where possible, from Migration PUMAs (MIGPUMA).

MIGCOUNTY1 identifies a county if and only if:

  • it was coterminous with a single Migration PUMA; or
  • it contained multiple Migration PUMAs, none of which extended into other counties.

For a listing of the counties that MIGCOUNTY1 identifies, see the "MIG-PW" sheets in this Excel document:

Codes

MIGCOUNTY1 is a 3-digit numeric variable that identifies the county where the respondent lived 1 year ago using the Federal Information Processing Standard (FIPS) coding scheme.

MIGCOUNTY1-Specific Variable Code
000 = Not in universe, or county not identifiable from public-use data

Note that the 000 code applies to individuals who lived in the same residence 1 year ago as well as those whose previous residence was in an unidentifiable county. Users who wish to distinguish these two conditions should use MIGRATE1 in conjunction with MIGCOUNTY1.

For a listing of MIGCOUNTY1 codes and the counties they identify, see the "MIG-PW" sheets in this Excel document:

Comparability

This variable is comparable across years, but county boundaries change over time.

Universe

  • ACS, PRCS: Persons age 1+ who lived in different house 1 year ago.

Availability

United States
  • 2017: All samples
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: ACS; ACS 3yr; ACS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2004: --
  • 2003: --
  • 2002: --
  • 2001: --
  • 2000: --
  • 1990: --
  • 1980: --
  • 1970: --
  • 1960: --
  • 1950: --
  • 1940: --
  • 1930: --
  • 1920: --
  • 1910: --
  • 1900: --
  • 1880: --
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2017: All samples
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: PRCS; PRCS 3yr; PRCS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2000: --
  • 1990: --
  • 1980: --
  • 1970: --
  • 1930: --
  • 1920: --
  • 1910: --

Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.