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Armstrong County, PA
Population by Decades

Date Population Population
Change
Annual
% Change
1900 52,551--
1910 67,88015,3292.6
1920 75,5687,6881.1
1930 79,2983,7300.5
1940 81,0871,7890.2
1950 80,842-2450.0
1960 79,524-1,318-0.2
1970 75,590-3,934-0.5
1980 77,7682,1780.3
1990 73,478-4,290-0.6
2000 72,392-1,086-0.1
Source: U.S. Bureau of Census

 
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