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Sangamon County, IL
Population by Decades

Date Population Population
Change
Annual
% Change
1900 71,593--
1910 91,02419,4312.4
1920 100,2629,2381.0
1930 111,73311,4711.1
1940 117,9126,1790.5
1950 131,48413,5721.1
1960 146,53915,0551.1
1970 161,33514,7961.0
1980 176,08914,7540.9
1990 178,3862,2970.1
2000 188,95110,5650.6
Source: U.S. Bureau of Census

 
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