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Calhoun County, IA
Population by Decades

Date Population Population
Change
Annual
% Change
1900 18,569--
1910 17,090-1,479-0.8
1920 17,7836930.4
1930 17,605-178-0.1
1940 17,584-210.0
1950 16,925-659-0.4
1960 15,923-1,002-0.6
1970 14,287-1,636-1.1
1980 13,542-745-0.5
1990 11,508-2,034-1.6
2000 11,115-393-0.3
Source: U.S. Bureau of Census

 
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