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MIGCOUNTY5
County of residence 5 years ago
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Description

For respondents who lived in a different residence 5 years before the census, MIGCOUNTY5 identifies the county (or county equivalent) where the respondent lived at that time, if the prior residence was in an identifiable county.

MIGCOUNTY5 uses the Federal Information Processing Standard (FIPS) coding scheme, as is used by COUNTYFIP. FIPS county codes are state-dependent, so MIGCOUNTY5 must be combined with state codes (see MIGPLAC5) to distinguish counties located in different states.

MIGCOUNTY1 provides analogous information for 2005 and later ACS and PRCS samples, using a 1-year rather than a 5-year reference period.

MIGCOUNTY provides analogous information for 1940 full-count microdata, using 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).

MIGCOUNTY5 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 MIGCOUNTY5 identifies, see the "MIG-PW" sheets in this Excel document:

Codes

MIGCOUNTY5 is a 3-digit numeric variable that identifies the county where the respondent lived 5 years ago using the Federal Information Processing Standard (FIPS) coding scheme.

MIGCOUNTY5-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 5 years ago as well as those whose previous residence was in an unidentifiable county. Users who wish to distinguish these two conditions should use MIGRATE5 in conjunction with MIGCOUNTY5.

For a listing of MIGCOUNTY5 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

  • 2000: Persons age 5+ who lived in different house 5 years ago.

Availability

United States
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  • 2000: 5%; 1% unwt
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Puerto Rico
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  • 2000: PR 5%
  • 1990: --
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Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.