Bureau of Labor Statistics: The principal fact-finding agency for the Federal Government in the broad field of labor economics and statistics.
CIA World Factbook: Focuses on intelligence work, and country information, including maps, flags and time zones.
Economic and Monetary Trends: From the St. Louis Federal Reserve; updated monthly.
Missouri Census Data: This website provides access to Missouri census data including county maps, trend reports and historical populations.
Statistical Abstracts 2012 and older OR Statistical Abstracts 2013 and following -- This is the authoritative summary of statistics on the social, political, & economic organization of the United States. Data is provided by the Census Bureau, Bureau of Labor Statistics, Bureau of Economic Analysis, & numerous other federal & private organizations.
U.S. Census Bureau: United States census information; includes people, business, demographic, and labor data, maps, American FactFinder and tools to make the data meaningful.
USA.gov: Access to U.S. government sites – services, information and government agencies.