US Census Data

Largest by population in Pennsylvania

Pennsylvania counties and cities ranked by population.

This page ranks the counties and cities of Pennsylvania by population — which have the most people, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Philadelphia County leads at 1,582,432.

Among cities & places, Philadelphia leads at 1,582,432.

Counties

#NamePopulation
1Philadelphia County1,582,432
2Allegheny County1,240,476
3Montgomery County861,225
4Bucks County645,993
5Delaware County576,195
6Lancaster County555,151
7Chester County540,896
8York County459,312
9Berks County429,989
10Lehigh County375,408
11Westmoreland County353,345
12Luzerne County325,978
13Northampton County315,927
14Dauphin County287,484
15Erie County269,544
16Cumberland County264,422
17Lackawanna County215,834
18Washington County209,778
19Butler County195,870
20Monroe County167,784
21Beaver County166,993
22Centre County158,041
23Franklin County156,626
24Lebanon County143,592
25Schuylkill County143,259
26Cambria County132,355
27Fayette County126,967
28Blair County121,854
29Lycoming County113,570
30Mercer County109,852
31Adams County105,183
32Northumberland County90,925
33Lawrence County85,423
34Indiana County83,213
35Crawford County83,189
36Clearfield County78,902
37Somerset County73,255
38Carbon County65,191
39Armstrong County65,069
40Columbia County65,055
41Bradford County59,971
42Pike County59,691
43Wayne County51,189
44Venango County50,096
45Bedford County47,503
46Mifflin County46,074
47Perry County45,988
48Jefferson County44,099
49Huntingdon County43,844
50Union County42,570
51Tioga County41,078
52McKean County40,149
53Snyder County39,711
54Susquehanna County38,349
55Warren County38,174
56Clinton County37,707
57Clarion County37,297
58Greene County35,265
59Elk County30,703
60Wyoming County26,075
61Juniata County23,419
62Montour County18,079
63Potter County16,276
64Fulton County14,545
65Forest County6,785
66Sullivan County5,849
67Cameron County4,475

Cities & places

Top 100.
#NamePopulation
1Philadelphia1,582,432
2Pittsburgh303,620
3Allentown125,320
4Reading94,836
5Erie94,156
6Bethlehem77,069
7Scranton76,074
8Lancaster57,683
9Levittown50,930
10Harrisburg50,092
11York44,830
12Wilkes-Barre44,217
13Altoona43,508
14State College40,669
15Norristown35,782
16Chester33,209
17Bethel Park33,070
18Drexel Hill30,015
19Hazleton29,886
20Easton29,079
21Monroeville28,383
22Williamsport27,629
23Plum26,873
24Lebanon26,600
25King of Prussia25,025
26Pottstown23,392
27Allison Park22,108
28Chambersburg22,051
29New Castle21,727
30Carlisle21,335
31Baldwin21,159
32Murrysville20,839
33West Mifflin19,338
34West Chester19,235
35Phoenixville19,062
36Lansdale18,865
37Johnstown18,245
38Colonial Park18,125
39McKeesport17,520
40Fullerton16,729
41Hanover16,483
42Hermitage16,132
43Horsham15,866
44Weigelstown15,401
45Franklin Park15,273
46Whitehall14,863
47Greensburg14,777
48Hershey14,334
49Indiana14,170
50Ardmore14,165
51Wilkinsburg14,165
52Dunmore14,123
53Willow Grove13,919
54Ephrata13,729
55Carnot-Moon13,639
56Montgomeryville13,572
57Pottsville13,374
58Washington13,361
59Kingston13,333
60Coatesville13,323
61Butler13,306
62Sharon13,019
63Bloomsburg12,906
64Meadville12,723
65St. Marys12,612
66Jefferson Hills12,313
67Yeadon12,091
68New Kensington12,072
69Elizabethtown11,857
70Mountain Top11,856
71Emmaus11,727
72Lower Burrell11,659
73Progress11,143
74Wyomissing11,100
75Lansdowne11,064
76Waynesboro11,044
77Shiloh11,022
78Broomall10,684
79Darby10,664
80Munhall10,633
81Nanticoke10,610
82Northampton10,366
83Berwick10,291
84Woodlyn10,276
85Columbia10,217
86Roslyn10,150
87Willow Street10,010
88Brentwood9,927
89Bristol9,874
90Uniontown9,819
91Morrisville9,740
92Croydon9,704
93Canonsburg9,682
94Sunbury9,643
95Bala Cynwyd9,622
96Lititz9,599
97Middletown9,567
98Mechanicsburg9,535
99Oil City9,517
100Quakertown9,298

Nationwide

1

Other rankings in Pennsylvania

20

Browse

1