Links

Official U.S. Census Sites

American FactFinder – Contains fact sheets, static and interactive maps, data downloads for 1990 and 2000, and extensive documentation.
http://factfinder2.census.gov
Census 2000 Summary File 1 (SF1)
http://www.census.gov/census2000/sumfile1.html
Census 2000 Summary File 3 (SF3)
http://www.census.gov/census2000/sumfile3.html
Census 2000 TIGER/Line Files
http://www.census.gov/geo/www/tiger/tigerua/ua_tgr2k.html

Historical Data

National Historical Geographic Information System (Minnesota Population Center, University of Minnesota) – Project to create and disseminate census information back to 1790.
http://www.nhgis.org

Census Maps and Analysis

CensusScope (Social Science Data Analysis Network at the Population Studies Center, University of Michigan) - Contains web tools for investigating U.S. demographic trends.
http://www.censusscope.org
Lewis Mumford Center for Comparative Urban and Regional Research (University at Albany, SUNY) - Information and analyses of how the racial and ethnic composition of metropolitan areas has shifted in the last ten years.
http://mumford.albany.edu/census
Social Explorer (Queens College of the City University of New York) – Interactive maps for 1990 and 2000.
http://www.socialexplorer.com
MABLE/Geocorr2K (Missouri Census Data Center) - Geographic correspondence engine with Census 2000 geography.
http://mcdc2.missouri.edu/websas/geocorr2k.html

Regional and Local

There are many regional and local projects highlighting census data in certain areas. These are some that we have found useful in our research.

New York City Department of City Planning, Population Division – Maps and analyses of New York City’s population, as well as interactive neighborhood maps.
http://www.nyc.gov/html/dcp/html/census/census.shtml
NYC Census Fact Finder
http://gis.nyc.gov/dcp/pa/address.jsp
Greater New Orleans Community Data Center – Information on New Orleans neighborhoods and the impact of Hurricane Katrina.
http://www.gnocdc.org

Commercial Sites

There are a number of commercial firms that provide added-value census products, including pre-processed data, normalized data, population estimates, and geocoding services. This listing does not constitute an endorsement of these companies.

Decision Demographics: http://www.decision-demographics.com/
GeoLytics: http://www.geolytics.com

Global Data

Gridded Population of the World (GPW), version 3 – Global 2.5 arc-minute gridded population data, based on 400,000 subnational census units.
http://sedac.ciesin.columbia.edu/data/collection/gpw-v3
Global Rural-Urban Mapping Project (GRUMP), version 1 - Global 30 arc-second gridded population data with urban reallocation. GRUMP is comprised of 400,000 census units and urban footprints based largely on nighttime lights.
http://sedac.ciesin.columbia.edu/data/collection/grump-v1
LandScan – Global 30 arc-second gridded ambient population data, based on sub-national census data apportioned to each grid cell based on proximity to roads, slope, land cover, and other information.
http://www.ornl.gov/sci/landscan