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San Mateo County, CA
Population by Decades

Date Population Population
Change
Annual
% Change
1900 12,094--
1910 26,58514,4918.2
1920 36,78110,1963.3
1930 77,40540,6247.7
1940 111,78234,3773.7
1950 235,659123,8777.7
1960 444,387208,7286.5
1970 556,234111,8472.3
1980 587,32931,0950.5
1990 649,62362,2941.0
2000 707,16157,5380.9
Source: U.S. Bureau of Census

 
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