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Blair County, PA
Population by Decades

Date Population Population
Change
Annual
% Change
1900 85,099--
1910 108,85823,7592.5
1920 128,33419,4761.7
1930 139,84011,5060.9
1940 140,3585180.0
1950 139,514-844-0.1
1960 137,270-2,244-0.2
1970 135,356-1,914-0.1
1980 136,6211,2650.1
1990 130,542-6,079-0.5
2000 129,144-1,398-0.1
Source: U.S. Bureau of Census

 
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