State of the CitiesCentral city and metropolitan area data for over 300 areas in the U.S. 1970, 1980 and 1990 Census data includes population, housing, occupation, income, education, poverty, race, and family characteristics. Labor force and unemployment data since 1990. Central city and metropolitan area data from County Business Patterns for 4-digit SIC industries. Choose file, then area, and then data table.