Pennsylvania / Counties by Population

Pennsylvania Counties by Population

Below are the 67 Pennsylvania counties sorted by population from 1 to 67 . The population data are from the 2021 Population Estimates Program and 2020 American Community Survey. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Philadelphia County 1,576,251
2 Allegheny County 1,238,090
3 Montgomery County 860,578
4 Bucks County 646,098
5 Delaware County 573,849
6 Lancaster County 553,652
7 Chester County 538,649
8 York County 458,696
9 Berks County 429,342
10 Lehigh County 375,539
11 Westmoreland County 353,057
12 Luzerne County 326,053
13 Northampton County 313,628
14 Dauphin County 287,400
15 Erie County 269,011
16 Cumberland County 262,919
17 Lackawanna County 215,663
18 Washington County 209,470
19 Butler County 194,273
20 Monroe County 169,273
21 Beaver County 166,624
22 Centre County 157,527
23 Franklin County 156,289
24 Lebanon County 143,493
25 Schuylkill County 143,264
26 Cambria County 132,167
27 Fayette County 126,931
28 Blair County 121,767
29 Lycoming County 113,605
30 Mercer County 109,972
31 Adams County 104,127
32 Northumberland County 91,266
33 Lawrence County 85,497
34 Crawford County 83,351
35 Indiana County 82,886
36 Clearfield County 80,082
37 Somerset County 73,627
38 Carbon County 65,412
39 Armstrong County 65,093
40 Columbia County 64,872
41 Pike County 59,952
42 Bradford County 59,892
43 Wayne County 51,431
44 Venango County 49,938
45 Bedford County 47,461
46 Mifflin County 46,136
47 Perry County 45,986
48 Jefferson County 44,114
49 Huntingdon County 43,889
50 Union County 42,568
51 Tioga County 40,929
52 McKean County 39,941
53 Snyder County 39,621
54 Susquehanna County 38,389
55 Warren County 38,134
56 Clinton County 37,465
57 Clarion County 37,156
58 Greene County 35,369
59 Elk County 30,783
60 Wyoming County 26,034
61 Juniata County 23,297
62 Montour County 18,087
63 Potter County 16,259
64 Fulton County 14,523
65 Forest County 7,032
66 Sullivan County 5,868
67 Cameron County 4,459

United States Census Bureau. B01001 SEX BY AGE, 2020 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 17 March 2022. http://www.census.gov/.

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2021. U.S. Census Bureau, Population Division. Web. May 2022. http://www.census.gov/.

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