The commercial products below were not published by the federal government, but have compiled federal data and statistics in a way that provides "one stop shopping" - allowing you to simultaneously search across multiple sources of statistical information.
The standard source for the quantitative facts of American history, it provides data on social, behavioral, humanistic, and natural sciences including history, economics, government, finance, sociology, demography, education, law, natural resources, climate, religion, international migration, and trade.
Provides easy access to summary tables and time series of population, housing, agriculture, and economic data, along with GIS-compatible mapping files, for years from 1790 through the present and for all levels of U.S. census geography, including states, counties, tracts, and blocks