Regional Data Center 1930-2020 Total Population
GeoIDName1930 Total Population1940 Total Population1950 Total Population1960 Total Population1970 Total Population1980 Total Population1990 Total Population2000 Total Population2010 Total Population2020 Total Population
05000US42003Allegheny
County
1,374,4101,411,5391,515,2371,629,8211,605,1331,450,1951,336,4491,281,6661,223,3481,250,578
05000US42005Armstrong
County
79,29881,08780,84279,52475,59077,76873,47872,39268,94165,558
05000US42007Beaver
County
149,062156,754175,192206,948208,418204,441186,093181,412170,539168,215
05000US42019Butler
County
80,48087,59097,320114,639127,941147,912152,013174,083183,862193,763
05000US42051Fayette
County
198,542200,999189,899169,340154,667159,417145,351148,644136,606128,804
05000US42059Greene
County
41,76744,67145,39439,42436,09040,47639,55040,67238,68635,954
05000US42063Indiana
County
75,39579,85477,10675,36679,45192,28189,99489,60588,88083,246
05000US42073Lawrence
County
97,25896,877105,120112,965107,374107,15096,24694,64391,10886,070
05000US42125Washington
County
204,802210,852209,628217,271210,876217,074204,584202,897207,820209,349
05000US42129Westmoreland
County
288,755303,411313,179352,629376,935392,184370,321369,993365,169354,663
04000US42SPCSPC Region2,589,7692,673,6342,808,9172,997,9272,982,4752,888,8982,694,0792,656,0072,574,9592,576,200