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Arapahoe County, CO
Population by Decades

Date Population Population
Change
Annual
% Change
1900 153,017--
1910 10,263-142,754-23.7
1920 13,7663,5033.0
1930 22,6478,8815.1
1940 32,1509,5033.6
1950 52,12519,9755.0
1960 113,42661,3018.1
1970 162,14248,7163.6
1980 293,621131,4796.1
1990 391,51197,8902.9
2000 487,96796,4562.2
Source: U.S. Bureau of Census

 
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