This guide has links to sites of electronic copies of original documents, facsimiles, photographs and maps. Created originally by Erin Cassidy, Newton Grisham Library at Sam Houston State University, Huntsville, TX.
The official website of the Census Bureau. Use the QuickFacts tool to drill down into aggregated census data from the most recent census period. The site also provides other useful tools, such as Interactive Maps and Population Finder.
For any census year, select the information you wish to see, then view data tables or create maps for data at the state or county levels. This is an excellent tool for analyzing and comparing census data. (Univ. of Virginia Libraries)