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Clinton County, IL
Population by Decades

Date Population Population
Change
Annual
% Change
1900 19,824--
1910 22,8323,0081.4
1920 22,9471150.1
1930 21,369-1,578-0.7
1940 22,9121,5430.7
1950 22,594-318-0.1
1960 24,0291,4350.6
1970 28,3154,2861.7
1980 32,6174,3021.4
1990 33,9441,3270.4
2000 35,5351,5910.5
Source: U.S. Bureau of Census

 
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