Supplementary Public Data--Geographic Codes

NA

• Administrative records

• Irregular

Dorn County to Commuting Zone Crosswalk (http://www.ddorn.net/data/cw_cty_czone.zip) These data crosswalk Census County FIPS codes to Commuting Zones. The author recommends users cite the paper that produced the crosswalk: David Autor and David Dorn. "The Growth of Low Skill Service Jobs and the Polarization of the U.S. Labor Market." American Economic Review, 103(5), 1553-1597, 2013.

BLS County to Labor Market Area Crosswalk (https://www.bls.gov/lau/lmadir2015.xlsx) These data crosswalk Census County FIPS codes to BLS Labor Market Areas (LMAs). LMAs are economically integrated geographic areas within which individuals can reside and find employment within a reasonable distance or readily change employment without changing their place of residence. LMAs are non-overlapping and geographically exhaustive. Since these areas are based on the degree of economic integration as measured by commuting flows and without regard to state boundaries, interstate LMAs exist. LMAs in New England are composed of cities and towns rather than counties.

MCDC County to PUMA and CBSA These data are generated using the web application at http://mcdc.missouri.edu/applications/geocorr2018.html. The data crosswalk Census county FIPS codes to Public Use Microdata Areas (PUMAs) and Core Based Statistical Areas (CBSAs), using the newest available geographic definitions.

BLS Area Titles (https://data.bls.gov/cew/doc/titles/area/area_titles.htm) These data list FIPS codes and titles for Counties, Combined Statistical Areas, Metropolitan Statistical Areas, and Nonmetropolitan area codes along with their titles, such as county or metro area names.

Census Block Year to Year Relationship Files (https://www.census.gov/geographies/reference-files/time-series/geo/relationship-files.2010.html) These files crosswalk census blocks from one Decennial Census to the other. There are files for 1990 to 2010 and for 2000 to 2010.

Census Congressional District Relationships (https://www.census.gov/geographies/reference-files/2010/geo/relationship-files.html#par_textimage_19960473) Files contain concordances between 2000 and 2010-era U.S. congressional districts and other geographies and data such as counties, land area, American Indian and Alaska Native areas, and ZIP Codes.

Census Tract Year to Year Relationship Files (https://www.census.gov/geographies/reference-files/time-series/geo/relationship-files.2010.html#par_textimage_19960473) These files crosswalk census tracts from one Decennial Census to the other. There are files for 1970 to 1980; 1980 to 1990; 1990 to 2000; and 2000 to 2010.

Census Other Geography Relationships (https://www.census.gov/geographies/reference-files/2010/geo/relationship-files.html#par_textimage_19960473) Files contain concordances between 2010-era tracts, urban areas and zip codes and American Indian areas, military areas, PUMAs, congressional districts, counties, county subdivisions, metro/micropolitan areas, NECTAs, places, and urban areas.

Census TIGER Line Shapefiles (https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html) Files include TIGER geodatabases and TIGER/Line Shapefiles. The Shapefiles contain current geographic boundaries for the United States, the District of Columbia, Puerto Rico, and the Island areas. In addition to geographic boundaries, the TIGER/Line Shapefiles also include geographic feature shapefiles and relationship files. Feature shapefiles represent the point, line and polygon features in the MAF/TIGER database, like roads and rivers.

Census Gazetteer Files (https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html) The U.S. Gazetteer Files provide a listing of all geographic areas for selected geographic area types. The files include geographic identifier codes, names, area measurements, and representative latitude and longitude coordinates.

IPUMS USA shapefiles for PUMAs and Migration PUMAs (https://usa.ipums.org/usa/volii/tgeotools.shtml) Files include shapefiles for PUMAs (Public Use Microdata Areas) and Migration PUMAs based on 2000 and 2010 Decennial Census information and used in the American Community Survey (ACS) and Puerto Rico Community Survey (PRCS).

• BLS Area Titles associated with county FIPS, combined statistical areas, metropolitan statistical areas, and nonmetropolitan area codes, such as county or metro area names from https://www.bls.gov/cew/classifications/areas/qcew-area-titles.htm downloaded on January 31, 2023.

• Crosswalks between 2010 and 2020 census blocks obtained from https://www.census.gov/geographies/reference-files/time-series/geo/relationship-files.2020.html#list-tab-1709067297

• Relationships between U.S. congressional districts and other 2020 geographies. The data can be found on various pages at https://www.census.gov/geographies/reference-files/time-series/geo/relationship-files.2020.html#entitycd.

• U.S. Gazetteer Files for 2020-2022 providing a listing of all geographic areas for selected geographic area types. Files include geographic identifier codes, names, area measurements, and representative latitude and longitude coordinates. Downloaded from https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html on 2/21/2023.

• Census TIGER geodatabases for 2013-2022 downloaded from https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html on 3/1/2023.

• Urban-Rural continuum codes from a variety of sources to help classify land area in the U.S. by population density as one of several metro or nonmetro categories. County-level codes come from USDA or National Center for Health Statistics (NCHS). o USDA codes for 1974, 1983, 1993, 2003, and 2013 were downloaded on 3/1/2023 from https://www.ers.usda.gov/data-products/rural-urban-continuum-codes/. Documentation is available at https://www.ers.usda.gov/data-products/rural-urban-continuum-codes/documentation. o NCHS codes for 2013, 2006, and 1990 (all one file) were downloaded on 3/1/2023 from https://www.cdc.gov/nchs/data_access/urban_rural.htm. o Place-level codes come from ICPSR and include geographic shapefiles and visualizations. PLURAL codes for 1930 through 2018 were downloaded on 3/1/2023 from https://www.openicpsr.org/openicpsr/project/162941/version/V1/view?path=/openicp sr/162941/fcr:versions/V1&type=project. (Users of this data must cite: Uhl, J. H., Hunter, L. M., Leyk, S., Connor, D. S., Nieves, J. J., Hester, C., Talbot, C. B., Gutmann, M. P. PLURAL - Place-level urban-rural indices for the United States from 1930 to 2018. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2022-02-18. https://doi.org/10.3886/E162941V1.)