Ranking of Pennsylvania Counties By Net Migration in 2020

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2020, the Net Migration for Pennsylvania was -6.33K. Among all Pennsylvania counties, Montgomery County had the highest net migration (3.40K), followed by Cumberland County (2.65K), and Butler County (1.17K).

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 Net Migration in 2020
Montgomery
Cumberland
Butler
York
Chester
Dauphin
Lehigh
Northampton
Washington
Bucks
Ranking of Pennsylvania Counties By Net Migration in 2020
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Rank County Net Migration
1 Montgomery County 3404
2 Cumberland County 2649
3 Butler County 1170
4 York County 925
5 Chester County 877
6 Dauphin County 851
7 Lehigh County 745
8 Northampton County 686
9 Washington County 601
10 Bucks County 504
11 Luzerne County 473
12 Lebanon County 429
13 Pike County 400
14 Monroe County 321
15 Carbon County 271
16 Berks County 268
17 Wayne County 182
18 Adams County 171
19 Schuylkill County 162
20 Franklin County 155
21 Westmoreland County 88
22 Columbia County 73
23 Bedford County 44
24 Sullivan County 25
25 Fulton County 16
26 Forest County 2
27 Potter County -20
28 Cameron County -53
29 Mifflin County -66
30 Snyder County -69
31 Bradford County -74
32 Clarion County -76
33 Montour County -87
34 Warren County -95
35 Jefferson County -96
36 Lackawanna County -100
37 Lawrence County -104
38 Susquehanna County -110
39 Perry County -111
40 McKean County -114
41 Wyoming County -115
42 Lycoming County -126
43 Northumberland County -138
44 Huntingdon County -142
45 Tioga County -144
45 Union County -144
46 Juniata County -152
47 Armstrong County -153
48 Elk County -163
49 Indiana County -187
50 Somerset County -232
51 Clearfield County -246
52 Venango County -270
53 Mercer County -285
54 Greene County -299
55 Delaware County -308
56 Clinton County -332
57 Blair County -362
58 Centre County -535
59 Crawford County -566
60 Lancaster County -575
61 Fayette County -642
62 Beaver County -707
63 Cambria County -768
64 Erie County -780
65 Allegheny County -2536
66 Philadelphia County -9741