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Rural Land
DeKalb County, IL
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
31,756
-
-
1910
33,457
1,701
0.5
1920
31,339
-2,118
-0.7
1930
32,644
1,305
0.4
1940
34,388
1,744
0.5
1950
40,781
6,393
1.7
1960
51,714
10,933
2.4
1970
71,654
19,940
3.3
1980
74,624
2,970
0.4
1990
77,932
3,308
0.4
2000
88,969
11,037
1.3
Source:
U.S. Bureau of Census
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