Access the decennial United States Census and additional data collected by the Census Bureau. Tools for data discovery and analysis include:
Data.Census.Gov - This interactive application provides statistics from the Economic Census, the American Community Survey, and the 2010 Census, among others.
Statistical Abstracts - A comprehensive summary of statistics on the social, political, and economic organization of the United States. First published in 1878, discontinued after 2012.
A widely-used collection of survey data about the social & demographic characteristics of US residents. The National Opinion Research Center started administering the survey in 1972. The survey is currently administered every two years. Data is available for download.