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Rural Land
Iroquois County, IL
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
38,014
-
-
1910
35,543
-2,471
-0.7
1920
34,841
-702
-0.2
1930
32,913
-1,928
-0.6
1940
32,496
-417
-0.1
1950
32,348
-148
0.0
1960
33,562
1,214
0.4
1970
33,532
-30
0.0
1980
32,976
-556
-0.2
1990
30,787
-2,189
-0.7
2000
31,334
547
0.2
Source:
U.S. Bureau of Census
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