Codes and Frequencies
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Explore how IPUMS created this variable
Most IPUMS data transformations are performed using variable harmonization tables that specify how each value in the source data is recoded. Some variables also require programming logic in addition to the harmonization table. The harmonization documents for this variable are:
- Harmonization table
- No supplemental programming
- Instructions for interpreting harmonization documents
Description
GEO2_US1990 identifies the household's PUMA (Public Use Microdata Area) within United States in 1990. PUMAs are the second level administrative units of the country for census purposes, after states. A GIS map (in shapefile format), corresponding to GEO2_US1990 can be downloaded from the GIS Boundary files page in the IPUMS International web site. The GIS boundary files for GEO2_US1990 are based on the U.S. Census Bureauâs 2000 TIGER/Line files.
The full set of geography variables for United States can be found in the IPUMS International Geography variables list. For cross-national geographic analysis on the first and second major administrative level of any country refer to GEOLEV1, and GEOLEV2. More information on IPUMS-International geography can be found here.
More details on construction of PUMAs can be found in IPUMS USA website. The following excel file lists GEO2_US1990 and their relationship to CONSPUMA.
Universe
- All households and group quarters; not available for Puerto Rico.
Availability
- United States: 1990
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