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Rural Land
Buchanan County, IA
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
21,427
-
-
1910
19,748
-1,679
-0.8
1920
19,890
142
0.1
1930
19,550
-340
-0.2
1940
20,991
1,441
0.7
1950
21,927
936
0.4
1960
22,293
366
0.2
1970
21,746
-547
-0.2
1980
22,900
1,154
0.5
1990
20,844
-2,056
-0.9
2000
21,093
249
0.1
Source:
U.S. Bureau of Census
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