Demographia
 
           
                 
                   
Urbanization in the United States from 1945
                   
                   
                   
DATA 1945 1950 1960 1970 1980 1990 2000 2010 1950-2010
Urban Land Area (Square Miles) 23,456 30,048 40,238 54,103 73,930 87,376 92,505 106,386 207.9%
Urban Population 86,513 96,468 125,269 149,647 167,051 187,053 222,353 249,253 130.5%
Urban Households (Estimated) 23,736 27,881 36,884 46,668 59,828 69,152 83,340 96,237 198.9%
                   
DENSITY (PER SQUARE MILE)                  
Popuation Density 3,688 3,211 3,113 2,766 2,260 2,141 2,404 2,343 -25.1%
Household Density 1,012 928 917 863 809 791 901 905 -2.9%
                   
CHANGE                  
Urban Land Area   28.1% 33.9% 34.5% 36.6% 18.2% 5.9% 15.0% 207.9%
Urban Population   11.5% 29.9% 19.5% 11.6% 12.0% 18.9% 12.1% 130.5%
Urban Households   17.5% 32.3% 26.5% 28.2% 15.6% 20.5% 15.5% 198.9%
Population Density   -13.0% -3.0% -11.2% -18.3% -5.3% 12.3% -2.5% -25.1%
Household Density   -8.3% -1.2% -5.9% -6.2% -2.2% 13.8% 0.4% -2.9%
                   
ANNUAL CHANGE                  
Urban Land Area   5.08% 2.96% 3.01% 3.17% 1.69% 0.57% 1.41% 1.89%
Urban Population   2.20% 2.65% 1.79% 1.11% 1.14% 1.74% 1.15% 1.40%
Urban Households   3.27% 2.84% 2.38% 2.52% 1.46% 1.88% 1.45% 1.84%
Population Density   -2.74% -0.31% -1.18% -2.00% -0.54% 1.17% -0.26% -0.48%
Household Density   -1.72% -0.12% -0.61% -0.64% -0.22% 1.30% 0.04% -0.05%
                   
RATIOS                  
Land Area/Population Change   2.31 1.12 1.68 2.87 1.48 0.33 1.23 1.35
Land Area/Household Change   1.55 1.04 1.26 1.26 1.15 0.30 0.97 1.03
                   
NOTES                  
Estimated from US Census Bureau & Department of Agriculture Economic Reseasrch Service data
Land Area: Actual
Population & Households: 000s
Density: Actual
Definitional changes occured during the period: Largest Change 1990-2000: Estimated reductiion in urban land 7% due to new 2000 definition
                   
                 
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