U.S. federal and state agencies gather and compile data on communities, economics, business, health, crime, and more. These sites help you find that data by browsing agencies or subjects or by searching.
U.S. government’s open data site. "Growing from 47 datasets in 2009 to nearly 450,000 datasets today, Data.gov reaches across 172 federal agencies to bring data to innovators, developers, analysts and citizens across the nation."
Provides guide to statistics/data produced by the principal statistical agency programs of the United States Federal Government that collect, analyze and disseminate statistical data and information .