Pennsylvania Citizen Population By County in 2019 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen population for Pennsylvania was 12,379,320 and represented 96.78% of the total Pennsylvania population.

Among all Pennsylvania counties, Philadelphia had the highest citizen population (1.47M), followed by Allegheny (1.18M), and Montgomery (786.67K).

In terms of percentages, Cameron had the highest percentage of its population being citizens (99.89%), followed by Armstrong (99.84%), and Jefferson (99.82%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

You may also be interested in:
Pennsylvania Citizen Voting-age Population By County in 2019

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Pennsylvania Citizen Population By County in 2019

Items per page:

0 of 0

County	Citizen Population	% of County Population
Philadelphia	1470525	93.13
Allegheny	1183525	96.87
Montgomery	786670	95.49
Bucks	604875	96.50
Delaware	539345	95.54
Lancaster	528955	97.77
Chester	492260	94.75
York	436590	97.99
Berks	402300	96.24
Westmoreland	350790	99.49
Lehigh	346305	94.87
Luzerne	306125	96.37
Northampton	293720	97.00
Erie	267565	97.71
Dauphin	264880	96.10
Cumberland	242070	97.09
Washington	205445	99.15
Lackawanna	204375	97.02
Butler	184815	98.88
Beaver	164955	99.47
Monroe	163125	97.08
Centre	151990	93.84
Franklin	150840	97.86
Schuylkill	141395	99.10
Lebanon	136830	97.93
Cambria	132425	99.56
Fayette	130415	99.33
Blair	122785	99.70
Lycoming	113175	98.99
Mercer	110990	99.53
Adams	99930	97.52
Northumberland	91080	99.26
Lawrence	86280	99.49
Crawford	85240	99.50
Indiana	84205	99.03
Clearfield	78180	97.84
Somerset	74090	99.64
Armstrong	65760	99.84
Columbia	65210	99.23
Carbon	63355	99.17
Bradford	60370	99.02
Pike	54340	97.99
Venango	51710	99.79
Wayne	50980	99.14
Bedford	48110	99.53
Mifflin	46115	99.65
Perry	45835	99.52
Huntingdon	44920	99.01
Union	44485	98.61
Jefferson	43765	99.82
McKean	40995	99.02
Tioga	40760	99.55
Susquehanna	40740	99.44
Snyder	40250	99.42
Warren	39575	99.55
Clinton	38725	99.51
Clarion	38515	99.48
Greene	36740	99.65
Elk	30225	99.62
Wyoming	27245	99.71
Juniata	24365	98.94
Montour	17965	98.38
Potter	16760	99.73
Fulton	14460	99.69
Forest	7285	99.59
Sullivan	6085	99.19
Cameron	4605	99.89