A Cure for the Common Codes provides convenient and definitive tables of commonly used geographic codes (mostly FIPS) organized by state for the U.S. We also have 2009 and 2003 versions.
MABLE/Geocorr - one of the MCDC's oldest and most frequently accessed web applications. Lets you generate geographic correspondence files showing how geographic areas overlap (e.g. how ZIP codes relate with counties and/or school districts.) This post-2010-census version ("geocorr12") has the current geography. We also maintain two earlier
versions of the application: geocorr2k has post-2000-census geography,
while geocorr90 is still useful for researchers wanting to look at the
geography of the 1990's.
Geographic Reference Reports from the Missouri Census Data Center. This is where you'll find the PUMA reference reports and lots of other good stuff.
Guide to 2010 Census State and Local Geography - Missouri (see below - 2010 Guide... for link that lest you access a comparable
page for any state.)
PUMAs (Public Use Microdata Areas). Excellent overview with links to just about anything you'll need to know about these increasingly important geographic entities.
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.
The ZIP Code Resources Page
(aka "All About ZIP Codes") - 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.
web application lets you display the zcta_master data for a specified ZIP/ZCTA code. Just type in a ZIP code and
hit Enter to get a report telling you the state(s), county(s), place(s), PUMA(s), metro area, congressional district, etc. You will also see
about 25 key indicators for the ZIP (ZCTA) based on the latest (2008-2012 as this is written) ACS data. If you enter a ZIP code that is not
a ZCTA the application will attempt to look up your ZIP code in a table to get the ZCTA equivalency, and will then display data for that ZCTA.
web application is a cousin to display_zctamaster. It lets you display the puma_master data for a specified 2010 ("2012") PUMA.
Generate a ZIP Code Directory
- Pick a state and get a directory showing all ZIP codes, not just the standard kind corresponding to ZCTAs.
Circular Area Profiles (CAPS) Dynamic n-mile radius reports based on popular demographic data for any location in US. There are actually 3 versions of CAPS:
Google geomap. This handy tool from the folks at Google allows you
to enter an address anywhere in the U.S. and have it mapped for you and provide the latitude-longitude coordinates of the address. (Referenced by our CAPS applications).
Online address geocoders are discussed and linked to as part of the Usage Notes page that comes with the CAPS application.
Other MCDC Maps/Mapping/Geography-Related Applications/Sites
Missouri Spatial Data Information Service [MSDIS]
MCDC Internet Map Server ("Enter the Mapper" - MSDIS dynamic mapping applicaiton.
Census 2000 Maps [Missouri County Base Maps]
MAGGOT File - 2012 - the latest revised version of this
venerable (since 1996) geographic reference tool. MAGGOT is an auxiliary help file that is linked to from our MABLE/Geocorr12
web application (see above). It provides background information on a wide array of geographic coverages - namely,
those used in the MABLE database. "MAGGOT" is an acronym for Master Area Geographic Glossary of Terms. There are also 07 and 09
versions (just edit the URL, replacing the "12") for those who prefer less current information.
Census Tract 2010 Maps - Missouri County Base Maps [115 pdf files]
Quick reference 2000 census tract maps for Missouri counties.
Nathan Mattox's legacy to the MCDC. This is a map-based link. (2000 census tracts).
Geographic Areas Linked to PB Map Series (2000 census)
Census Maps Using 1990 and 2000 Data [Missouri Legislative Districts]
MERIC Census 2000 Map Gallery
St. Charles Library city-County Library
District Geography Information
Metropolitan/Micropolitan, Urban/Rural, and Public Use Microdata areas
Ten Things to Know About Urban vs. Rural.
PUMAs (Public Use Microdata Areas). A good overview with links to just about anything you'll need to know about these increasingly important geographic entities.
Current Census Bureau Definitions of Metropolitan & Micropolitan Statistical Areas
map: Metropolitan and Micropolitan Statistical Areas (aka "CBSA's"). The map is as of Feb 2013. See following link to get access to comparable maps for
user-specified state and (certain) years.
State-based Metropolitan and Micropolitan Statistical Areas Maps: lets you select a state and a year.
Missouri Metropolitan and
Micropolitan Statistical Areas (Core based). [Report showing what counties comprise each area with most recent population estimates.]
This report gets regenerated whenever there is a change in the definitions (at least that is our intent). Last updated spring, 2013.
Geography Main Page
American National Standards Institute (ANSI) Codes
2010 Guide to State and Local Census Geography
2010 Geographic Terms and Concepts.
American Community Survey Geography page showing which geographic levels are getting 1-year, 3-year and 5-year estimates (for latest vintage data).
Maps and Cartographic Products
Census Bureau Map Products - this page is more current than the previous link. Use this link to get to reference (i.e. base) maps for entities such as metro areas (CBSAs), PUMAs, UAs, census tracts, etc.
Geographic Change Notes for any
state in the U.S.
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), various vintages updated annually.
These are the source of gazteer filetype in the MCDC data archive.
Geographic area Tallies - this is where you can find out how many areas of
a certain type were used in the 2000 and 2010 censuses. For example, the number of census blocks, block groups and census tracts by state with
The official definition of Urban (vs. Rural) for 2010 (current).
Census Glossary (search for geographic keywords).