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Rural Land
Carroll County, IA
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
20,319
-
-
1910
20,117
-202
-0.1
1920
21,549
1,432
0.7
1930
22,326
777
0.4
1940
22,770
444
0.2
1950
23,065
295
0.1
1960
23,431
366
0.2
1970
22,912
-519
-0.2
1980
22,951
39
0.0
1990
21,423
-1,528
-0.7
2000
21,421
-2
0.0
Source:
U.S. Bureau of Census
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