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Rural Land
Johnson County, IL
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
15,667
-
-
1910
14,331
-1,336
-0.9
1920
12,022
-2,309
-1.7
1930
10,203
-1,819
-1.6
1940
10,727
524
0.5
1950
8,729
-1,998
-2.0
1960
6,928
-1,801
-2.3
1970
7,550
622
0.9
1980
9,624
2,074
2.5
1990
11,347
1,723
1.7
2000
12,878
1,531
1.3
Source:
U.S. Bureau of Census
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