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Rural Land
Mahaska County, IA
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
34,273
-
-
1910
29,860
-4,413
-1.4
1920
26,270
-3,590
-1.3
1930
25,804
-466
-0.2
1940
26,485
681
0.3
1950
24,672
-1,813
-0.7
1960
23,602
-1,070
-0.4
1970
22,177
-1,425
-0.6
1980
22,867
690
0.3
1990
21,522
-1,345
-0.6
2000
22,335
813
0.4
Source:
U.S. Bureau of Census
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