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Columbia County, OR
Population by Decades

Date Population Population
Change
Annual
% Change
1900 6,237--
1910 10,5804,3435.4
1920 13,9603,3802.8
1930 20,0476,0873.7
1940 20,9719240.5
1950 22,9671,9960.9
1960 22,379-588-0.3
1970 28,7906,4112.6
1980 35,6466,8562.2
1990 37,5571,9110.5
2000 43,5606,0031.5
Source: U.S. Bureau of Census

 
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