American FactFinder . This link opens in a new windowAmerican FactFinder (AFF) is an online source for population, housing, economic and geographic data that presents the results from four key data programs: Decennial Census of Housing and Population , 1990 and 2000; American Community Survey, 2001-present; Population Estimates Program, 2005-present; Economic Census 1997 and 2002; Annual Economic Surveys, 2003-present.