Jefferson County
Illinois


POPULATION



2010
38,827
2000
40,045
1990
37,020
1980
36,552
1970
31,446
1960
32,315 
1950
35,892
1940
34,375
1930
31,034
1920
28,480
1910
29,111
1900
28,130

 
 
 
 

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Jefferson County Coordinator Cindy Ford
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