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Rural Land
Costilla County, CO
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
4,632
-
-
1910
5,498
866
1.7
1920
5,032
-466
-0.9
1930
5,779
747
1.4
1940
7,533
1,754
2.7
1950
6,067
-1,466
-2.1
1960
4,219
-1,848
-3.6
1970
3,091
-1,128
-3.1
1980
3,071
-20
-0.1
1990
3,190
119
0.4
2000
3,663
473
1.4
Source:
U.S. Bureau of Census
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