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Decade Censuses
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Rural Land
Washington Population by Decades
Date
Population
Population
Change
Annual
% Change
1900
518,103
-
-
1910
1,141,990
623,887
8.2
1920
1,356,621
214,631
1.7
1930
1,563,396
206,775
1.4
1940
1,736,191
172,795
1.1
1950
2,378,963
642,772
3.2
1960
2,853,214
474,251
1.8
1970
3,409,169
555,955
1.8
1980
4,132,156
722,987
1.9
1990
4,866,692
734,536
1.6
2000
5,894,121
1,027,429
1.9
Source:
U.S. Bureau of Census
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