Pennsylvania Citizen Population By County in 2024 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2024, the citizen population for Pennsylvania was 12,570,059 and represented 96.55% of the total Pennsylvania population.

Among all Pennsylvania counties, Philadelphia had the highest citizen population (1.46M), followed by Allegheny (1.20M), and Montgomery (827.44K).

In terms of percentages, Cameron had the highest percentage of its population being citizens (99.91%), followed by Elk (99.81%), and Fulton (99.77%).

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.

See this for other years:
Pennsylvania Citizen Population By County in 2024
Pennsylvania Citizen Population By County in 2024
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County Citizen Population % of County Population
Philadelphia 1463677 92.66
Allegheny 1197435 96.71
Montgomery 827437 95.37
Bucks 624752 96.49
Delaware 555102 95.84
Lancaster 545823 97.83
Chester 520698 95.05
York 454808 98.25
Berks 412550 95.27
Lehigh 353343 93.28
Westmoreland 350258 99.37
Luzerne 310486 94.75
Northampton 308093 96.71
Dauphin 276271 95.40
Erie 263109 97.79
Cumberland 259035 96.54
Lackawanna 208620 96.52
Washington 207758 98.91
Butler 195081 98.90
Beaver 165299 99.38
Monroe 162588 97.06
Franklin 154189 97.97
Centre 150327 94.80
Lebanon 141896 98.41
Schuylkill 141761 98.75
Cambria 130934 99.54
Fayette 125197 99.36
Blair 120297 99.19
Lycoming 112639 99.25
Mercer 108693 99.49
Adams 103912 97.93
Northumberland 89890 99.26
Lawrence 84616 99.52
Crawford 82369 99.58
Indiana 81806 98.51
Clearfield 77559 98.63
Somerset 72381 99.43
Columbia 64797 99.13
Carbon 64732 99.00
Armstrong 64345 99.57
Bradford 59470 99.36
Pike 59416 98.01
Wayne 50687 98.88
Venango 49617 99.63
Bedford 47261 99.47
Mifflin 45795 99.47
Perry 45769 98.98
Jefferson 43736 99.71
Huntingdon 43480 99.60
Union 41325 97.34
Tioga 40805 99.67
McKean 39559 99.15
Snyder 39378 99.26
Susquehanna 37896 99.16
Warren 37799 99.68
Clinton 37577 99.42
Clarion 36981 99.47
Greene 34711 99.65
Elk 30448 99.81
Wyoming 25730 99.08
Juniata 22997 98.37
Montour 17573 97.07
Potter 16094 99.43
Fulton 14495 99.77
Forest 6623 98.65
Sullivan 5841 99.22
Cameron 4423 99.91