USA.gov - links to government statistical sources
Data.gov - raw and geospatial datasets
Statistical Abstract (online) - 2011 edition; older in paper Docs C 3.134: 1893-2011
Census Bureau- see subpages and Easy Stats
Federal Reserve Economic Data - data and pulbications for US finance and trade
Bureau of Labor Statistics - extensive collection of statistics and reports broadly related to employment and economics
National Center for Education Statistics (NCES) -collects and analyzes education data in the United States and other nations
National Science Foundation - status of science & engineering including education, employment, funding, policies.
Tax Statistics, Internal Revenue Service - The Statistics of Income (SOI) program produces data files compiled from tax and information returns filed with the IRS
TranStats U.S. Bureau of Transportation Statistics
Aimed at providing "one stop shopping" for transportation data. Explore by mode, subject, or agency. Includes a Mapping Center for viewing and analyzing data geographically.
United States Geological Survey (USGS) provides science about the natural hazards that threaten lives and livelihoods; the water, energy, minerals, and other natural resources we rely on; the health of our ecosystems and environment; and the impacts of climate and land-use change
Justice Statistics Bureau - crimes, criminal offenders and victims, justice system, related special topics
NCJRS Abstracts Database - summaries of publications on criminal justice, Federal, state, and local government reports, books, research reports, journal articles, and unpublished research from the early 1970s to the present
Uniform Crime Reports - from the U.S. Federal Bureau of Investigation, nationwide statistics on crime from city, county, and state law enforcement agencies; some statistics are available back to 1995