Ranking of Pennsylvania Counties By Population in 2013

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2013, the Population for Pennsylvania was 12.78M. Among all Pennsylvania counties, Philadelphia County had the highest population (1.56M), followed by Allegheny County (1.23M), and Montgomery County (812.75K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Pennsylvania counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Pennsylvania Counties By Population in 2013
Philadelphia
1.56M
Allegheny
1.23M
Montgomery
812.75K
Bucks
625.33K
Delaware
561.64K
Lancaster
530.11K
Chester
509.10K
York
439.04K
Berks
413.98K
Westmoreland
360.72K
Ranking of Pennsylvania Counties By Population in 2013
Rank
County
Population
1 Philadelphia County 1,558,713
2 Allegheny County 1,233,999
3 Montgomery County 812,750
4 Bucks County 625,325
5 Delaware County 561,635
6 Lancaster County 530,109
7 Chester County 509,101
8 York County 439,041
9 Berks County 413,975
10 Westmoreland County 360,720
11 Lehigh County 355,273
12 Luzerne County 319,737
13 Northampton County 299,066
14 Erie County 280,905
15 Dauphin County 271,500
16 Cumberland County 241,153
17 Lackawanna County 213,797
18 Washington County 208,117
19 Butler County 185,185
20 Beaver County 169,770
21 Monroe County 167,435
22 Centre County 158,342
23 Franklin County 152,005
24 Schuylkill County 146,674
25 Cambria County 138,858
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