GeoID	Name	2010 Total Population	July 1, 2010 Population Estimate	July 1, 2011 Population Estimate	July 1, 2012 Population Estimate	July 1, 2013 Population Estimate	July 1, 2014 Population Estimate	July 1, 2015 Population Estimate	July 1, 2016 Population Estimate	July 1, 2017 Population Estimate	July 1, 2018 Population Estimate	July 1, 2019 Population Estimate	July 1, 2020 Population Estimate
05000US42003	Allegheny County	1,223,348	1,223,973	1,228,437	1,231,129	1,233,999	1,233,417	1,229,342	1,226,893	1,220,423	1,217,508	1,215,716	1,211,358
05000US42005	Armstrong County	68,941	69,029	68,661	68,223	68,015	67,631	66,913	66,464	66,042	65,411	64,699	64,162
05000US42007	Beaver County	170,539	170,630	170,330	170,091	169,770	169,033	168,311	166,926	165,779	164,669	163,956	162,575
05000US42019	Butler County	183,862	184,085	184,766	185,016	185,185	185,874	186,046	186,427	187,083	188,031	188,313	189,135
05000US42051	Fayette County	136,606	136,431	136,008	135,283	134,610	134,009	133,272	132,371	131,340	130,452	129,422	128,126
05000US42059	Greene County	38,686	38,616	38,377	38,048	37,880	37,781	37,431	37,222	36,875	36,639	36,062	35,621
05000US42063	Indiana County	88,880	88,864	88,639	88,243	88,178	87,459	86,800	85,243	84,809	84,578	84,022	83,664
05000US42073	Lawrence County	91,108	91,016	90,526	89,895	89,274	88,668	88,154	87,379	86,608	86,164	85,504	85,083
05000US42125	Washington County	207,820	207,944	208,089	208,350	208,117	208,050	207,824	207,469	207,152	207,114	206,866	206,803
05000US42129	Westmoreland County	365,169	365,029	364,450	362,825	360,720	358,931	357,006	354,763	352,152	350,600	348,941	347,087
04000US42SPC	SPC Region	2,574,959	2,575,617	2,578,283	2,577,103	2,575,748	2,570,853	2,561,099	2,551,157	2,538,263	2,531,166	2,523,501	2,513,614