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San Luis Obispo County, CA
Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
16,637
-
-
1910
19,383
2,746
1.5
1920
21,893
2,510
1.2
1930
29,613
7,720
3.1
1940
33,246
3,633
1.2
1950
51,417
18,171
4.5
1960
81,044
29,627
4.7
1970
105,690
24,646
2.7
1980
155,435
49,745
3.9
1990
217,162
61,727
3.4
2000
246,681
29,519
1.3
Source:
U.S. Bureau of Census
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