Census Geography Reference
Geography Applications, Reference, and Maps
- Geographic codes lookup provides convenient and definitive tables of commonly used geographic codes (mostly FIPS) organized by state for the U.S.
- Data applications by geographic area provides links to all MCDC data applications for a selected geographic area.
- Geocorr (geographic correspondence engine), one of our oldest and most-used web applications, lets you generate geographic correspondence files showing how geographic areas overlap (e.g., how ZIP codes relate with counties or school districts). Geocorr 2022 is the current, post-2020-census version. Geocorr 2018 is the post-2010-census version. Geocorr 2000 has post-2000-census geography, and Geocorr 1990 is still useful for the geography of the 1990s.
- Geographic reference reports includes the PUMA reference reports and lots of other good stuff.
- 2010 guide to state and local census geography — Missouri or all states
- All about census geography and summary levels: Good overview of census geography, with special emphasis on summary levels and SumLev codes as used on census summary files.
- Census geographic components: A list and brief explanation of these obscure but sometimes useful codes.
- The ZIP Code resources page provides general information and links to tools and resources related to U.S. ZIP Codes / ZCTAs. The companion piece, All about ZIP Codes: 2010 supplement, provides additional information specific to the 2010 ZCTAs.
- Circular area profiles (CAPS) ACS: Dynamic n-mile radius reports based on popular demographic data for any location in US. Uses an enhanced algorithm to improve the estimates for small radii using the same ACS data.
- Circular area profiles (CAPS) 2020: Uses data from the 2020 census (Demographic and Housing Characteristics file).
- Circular area profiles (CAPS) 2010: Uses data from the 2010 census (no "long form" data but reliable population counts).
- Circular area profiles (CAPS) 2000: "Classic" version using 2000 census data (from SF3).
- Google geomap: This tool allows you to enter an address anywhere in the U.S., have it mapped for you, and get the latitude-longitude coordinates of the address. Referenced by our CAPS and Geocorr applications.
- Geographic glossary file 2022: the latest version of this geographic reference tool is linked from our Geocorr 2022 web application (see above). It provides background information on a wide array of geographic coverages. There are also earlier versions available.
- Census tract 2020 maps: Missouri county base maps.
- Census tract 2010 maps: Missouri county base maps.
Metropolitan/Micropolitan, Urban/Rural, and Public Use Microdata Areas
Other Census Bureau Resources
- Geography main page
- American National Standards Institute (ANSI) codes for states
- American Community Survey geography page: Shows which geographic levels are getting 1-year and 5-year estimates (for latest vintage data).
- Reference maps: Base maps for entities such as metro areas (CBSAs), PUMAs, UAs, census tracts, etc.
- Geographic change notes for all states
- U.S. gazetteer files for congressional districts, places, counties, county subdivisions, census tracts, American Indian areas, school districts, state legislative districts, urban areas, and ZIP Code tabulation areas (ZCTAs). Updated annually. These are the source of gazetteer filetype in the MCDC data archive.
- Geographic area tallies: Find out how many areas of a certain type were used in the 2000 and 2010 censuses.
- The official definition of urban (vs. rural) for 2010 (current).
- Census glossary: Search for geographic keywords.
