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Decade Censuses
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Rural Land
Illinois Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
4,821,550
-
-
1910
5,638,591
817,041
1.6
1920
6,485,280
846,689
1.4
1930
7,630,654
1,145,374
1.6
1940
7,897,241
266,587
0.3
1950
8,712,176
814,935
1.0
1960
10,081,158
1,368,982
1.5
1970
11,113,976
1,032,818
1.0
1980
11,426,518
312,542
0.3
1990
11,430,602
4,084
0.0
2000
12,419,293
988,691
0.8
Source:
U.S. Bureau of Census
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