Ranking of Pennsylvania Cities and Places By Percentage of Population with Scotch Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 132.59K people in Pennsylvania with Scotch Irish ancestry (1.02% of Pennsylvania population). Among all Pennsylvania cities and places with a population of at least 10K, Washington city had the highest percentage of its population with Scotch Irish ancestry (3.31%), followed by Murrysville municipality (2.68%), and Chambersburg borough (2.28%).

The chart and table below shows the top 10 cities with high percentage of its population having Scotch Irish ancestry.

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

Data Source: US Census Bureau.
Ranking of Pennsylvania Cities and Places By Percentage of Population with Scotch Irish Ancestry in 2021
Washington city
Murrysville municipality
Chambersburg borough
Meadville city
Butler city
Franklin Park borough
Greensburg city
Plum borough
New Castle city
McKeesport city
Ranking of Pennsylvania Cities and Places By Percentage of Population with Scotch Irish Ancestry in 2021
0 of 0
Rank Ciy or Place Percentage of Pop. (%)
1 Washington city 3.31
2 Murrysville municipality 2.68
3 Chambersburg borough 2.28
4 Meadville city 2.19
5 Butler city 2.16
6 Franklin Park borough 2.09
7 Greensburg city 1.98
8 Plum borough 1.97
9 New Castle city 1.94
10 McKeesport city 1.86
11 Berwick borough 1.79
12 New Kensington city 1.78
13 Carlisle borough 1.77
14 Hermitage city 1.74
15 Lower Burrell city 1.71
16 Allison Park CDP 1.62
17 Monroeville municipality 1.48
18 Jefferson Hills borough 1.45
19 Baldwin borough 1.42
20 Woodlyn CDP 1.38
21 Sharon city 1.22
22 Bethel Park municipality 1.18
23 Wilkinsburg borough 1.17
24 Hanover borough 1.14
24 Johnstown city 1.14
25 Carnot-Moon CDP 1.12
25 Willow Grove CDP 1.12
26 Indiana borough 1.07
27 Lansdale borough 1.05
28 Altoona city 1.04
29 Pittsburgh city 1.03
30 Kingston borough 1.01
31 Levittown CDP 0.99
32 Phoenixville borough 0.98
32 Weigelstown CDP 0.98
33 Hershey CDP 0.97
34 Erie city 0.96
35 Wyomissing borough 0.93
36 Ardmore CDP 0.92
37 Roslyn CDP 0.90
38 Waynesboro borough 0.89
39 Drexel Hill CDP 0.87
40 West Mifflin borough 0.85
41 Williamsport city 0.81
42 Emmaus borough 0.79
43 Columbia borough 0.78
44 Horsham CDP 0.76
45 Ephrata borough 0.75
46 Shiloh CDP 0.74
47 Broomall CDP 0.67
48 Coatesville city 0.63
49 Mountain Top CDP 0.62
50 St. Marys city 0.60
51 King of Prussia CDP 0.59
51 Munhall borough 0.59
52 Lansdowne borough 0.58
53 Elizabethtown borough 0.56
53 Whitehall borough 0.56
54 State College borough 0.53
55 Bethlehem city 0.47
55 Colonial Park CDP 0.47
55 Easton city 0.47
55 Montgomeryville CDP 0.47
55 York city 0.47
56 Harrisburg city 0.46
57 Norristown borough 0.43
58 Pottstown borough 0.40
59 West Chester borough 0.37
60 Progress CDP 0.36
61 Lancaster city 0.35
62 Bloomsburg town 0.34
63 Lebanon city 0.31
64 Wilkes-Barre city 0.30
65 Fullerton CDP 0.29
66 Scranton city 0.28
67 Philadelphia city 0.23
68 Pottsville city 0.17
69 Dunmore borough 0.14
70 Allentown city 0.13
71 Chester city 0.12
72 Nanticoke city 0.10
73 Northampton borough 0.08
74 Reading city 0.07
75 Yeadon borough 0.05
76 Hazleton city 0.02