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Rural Land
Boulder County, CO
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
21,544
-
-
1910
30,330
8,786
3.5
1920
31,861
1,531
0.5
1930
32,456
595
0.2
1940
37,438
4,982
1.4
1950
48,296
10,858
2.6
1960
74,254
25,958
4.4
1970
131,889
57,635
5.9
1980
189,625
57,736
3.7
1990
225,339
35,714
1.7
2000
291,288
65,949
2.6
Source:
U.S. Bureau of Census
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