Ranking of Pennsylvania Counties By Percentage of Population with Other Groups Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.69M people in Pennsylvania with Other Groups ancestry (20.75% of Pennsylvania population). Among all Pennsylvania counties, Philadelphia County had the highest percentage of its population with Other Groups ancestry (48.71%), followed by Lehigh County (33.08%), and Dauphin County (26.42%).

The chart and table below shows the top 10 counties with high percentage of its population having Other Groups ancestry.

You can see similar information for other states and for other ancestry groups in Pennsylvania.

Data Source: US Census Bureau.
Ranking of Pennsylvania Counties By Percentage of Population with Other Groups Ancestry in 2021
Philadelphia County
Lehigh County
Dauphin County
Delaware County
Monroe County
Montgomery County
Berks County
Northampton County
Chester County
Luzerne County
Ranking of Pennsylvania Counties By Percentage of Population with Other Groups Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Philadelphia County 48.71
2 Lehigh County 33.08
3 Dauphin County 26.42
4 Delaware County 25.47
5 Monroe County 25.46
6 Montgomery County 23.19
7 Berks County 21.42
7 Northampton County 21.42
8 Chester County 20.35
9 Luzerne County 17.90
10 Allegheny County 17.40
11 Lebanon County 17.07
12 York County 16.99
13 Pike County 16.61
14 Forest County 16.37
15 Lancaster County 16.31
16 Bucks County 15.91
17 Cumberland County 15.46
18 Erie County 15.23
19 Franklin County 15.17
20 Adams County 14.04
21 Lackawanna County 13.98
22 Centre County 13.57
23 Union County 12.54
24 Beaver County 12.36
25 Juniata County 11.99
26 Mercer County 11.97
27 Montour County 11.25
28 Huntingdon County 11.14
29 Lawrence County 11.05
30 Clearfield County 11.02
31 Greene County 10.74
32 Lycoming County 10.60
33 Perry County 10.28
34 Northumberland County 10.17
35 Fulton County 10.14
36 Carbon County 10.05
37 Cambria County 9.97
38 Venango County 9.62
39 Fayette County 9.59
40 Washington County 9.58
41 Blair County 9.52
42 Warren County 9.46
43 McKean County 9.39
44 Columbia County 9.32
45 Indiana County 9.30
46 Mifflin County 9.26
47 Schuylkill County 9.20
48 Potter County 9.04
48 Wayne County 9.04
49 Clinton County 8.78
50 Somerset County 8.74
51 Crawford County 8.71
52 Clarion County 8.70
53 Bradford County 8.69
53 Butler County 8.69
54 Westmoreland County 8.65
55 Cameron County 8.64
56 Snyder County 8.33
57 Tioga County 8.15
58 Bedford County 7.78
59 Susquehanna County 7.45
60 Sullivan County 7.40
61 Elk County 7.36
62 Jefferson County 7.28
63 Wyoming County 6.96
64 Armstrong County 6.05