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Jefferson County, ID
Population by Decades

Date Population Population
Change
Annual
% Change
1900 Null--
1910 NullNullNull
1920 9,441NullNull
1930 9,171-270-0.3
1940 10,7621,5911.6
1950 10,495-267-0.3
1960 11,6721,1771.1
1970 11,619-530.0
1980 15,3043,6852.8
1990 16,5431,2390.8
2000 19,1552,6121.5
Source: U.S. Bureau of Census

 
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