The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2000.
Surveys and Statistics provides national- or state-based research on the needs, concerns, and interests of AARP members and the 50+ population as a whole.
U.S. Hispanic population and to chronicle Latinos' growing impact on the nation. The demographic patterns of Hispanic population growth and settlement across the United States can be found here.
