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Rural Land
McClain County, OK
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
Null
-
-
1910
15,659
Null
Null
1920
19,326
3,667
2.1
1930
21,575
2,249
1.1
1940
19,205
-2,370
-1.2
1950
14,681
-4,524
-2.7
1960
12,740
-1,941
-1.4
1970
14,157
1,417
1.1
1980
20,291
6,134
3.7
1990
22,795
2,504
1.2
2000
27,740
4,945
2.0
Source:
U.S. Bureau of Census
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