The Census website contains a large amount of demographic, economic, and geographic related information and statistics. Some portions of the site that are particularly useful for demographic information.
Use this site to locate data from the 2010 Census, the American Community Survey (2010-2020), and the 2012 and 2017 Economic Census. Please see the visual guide linked below for step-by-step directions on using this site.
Use this site to locate 2002 Economic Census reports by sector. Select your state; more granular geographic level data is available in these reports. Use Firefox or Safari to view reports (they will often not load in Chrome).