Ranking of Pennsylvania Counties By Population with European Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 147.00K people in Pennsylvania with European ancestry. Among all Pennsylvania counties, Allegheny County had the highest population with European ancestry (15.45K), followed by Montgomery County (11.58K), and Philadelphia County (10.02K).

The chart and table below shows the top 10 counties with high number of people with European 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 Population with European Ancestry in 2021
Allegheny County
Montgomery County
Philadelphia County
Chester County
Bucks County
Lancaster County
Delaware County
York County
Cumberland County
Dauphin County
Ranking of Pennsylvania Counties By Population with European Ancestry in 2021
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Rank County Population
1 Allegheny County 15453
2 Montgomery County 11579
3 Philadelphia County 10018
4 Chester County 9619
5 Bucks County 9008
6 Lancaster County 7571
7 Delaware County 6549
8 York County 5663
9 Cumberland County 4881
10 Dauphin County 4704
11 Westmoreland County 4456
12 Lehigh County 4085
13 Franklin County 3778
14 Berks County 3616
15 Northampton County 3247
16 Erie County 2699
17 Centre County 2649
18 Butler County 2017
19 Washington County 1895
20 Luzerne County 1833
21 Adams County 1605
22 Beaver County 1599
23 Lebanon County 1486
24 Monroe County 1415
25 Mercer County 1367
26 Cambria County 1230
27 Lackawanna County 1205
28 Fayette County 1197
29 Lycoming County 1129
30 Crawford County 999
31 Clearfield County 966
32 Blair County 957
33 Indiana County 904
34 Snyder County 765
35 Schuylkill County 743
36 Bedford County 707
37 Somerset County 693
38 Bradford County 672
38 Columbia County 672
39 Pike County 668
40 Tioga County 653
41 Warren County 627
42 Perry County 626
43 Lawrence County 610
44 Armstrong County 607
45 Wayne County 567
46 Huntingdon County 562
47 Northumberland County 551
48 McKean County 535
49 Venango County 489
50 Union County 471
51 Greene County 424
52 Jefferson County 411
53 Elk County 395
54 Susquehanna County 393
55 Mifflin County 387
56 Wyoming County 354
57 Carbon County 340
58 Clarion County 323
59 Fulton County 312
60 Potter County 308
61 Clinton County 279
62 Juniata County 179
63 Montour County 145
64 Sullivan County 82
65 Cameron County 38
66 Forest County 31