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Rural Land
Jefferson County, CO
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
9,306
-
-
1910
14,231
4,925
4.3
1920
14,400
169
0.1
1930
21,810
7,410
4.2
1940
30,725
8,915
3.5
1950
55,687
24,962
6.1
1960
127,520
71,833
8.6
1970
233,031
105,511
6.2
1980
371,753
138,722
4.8
1990
438,430
66,677
1.7
2000
527,056
88,626
1.9
Source:
U.S. Bureau of Census
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