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Clark County, IL
Population by Decades

Date Population Population
Change
Annual
% Change
1900 24,033--
1910 23,517-516-0.2
1920 21,165-2,352-1.0
1930 17,872-3,293-1.7
1940 18,8429700.5
1950 17,362-1,480-0.8
1960 16,546-816-0.5
1970 16,216-330-0.2
1980 16,9136970.4
1990 15,921-992-0.6
2000 17,0081,0870.7
Source: U.S. Bureau of Census

 
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