Ranking of Ohio Counties By Population with Scotch Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 104.68K people in Ohio with Scotch Irish ancestry. Among all Ohio counties, Franklin County had the highest population with Scotch Irish ancestry (11.54K), followed by Cuyahoga County (8.17K), and Hamilton County (5.89K).

The chart and table below shows the top 10 counties with high number of people with Scotch Irish ancestry.

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

Data Source: US Census Bureau.
Ranking of Ohio Counties By Population with Scotch Irish Ancestry in 2021
Franklin County
Cuyahoga County
Hamilton County
Montgomery County
Summit County
Stark County
Delaware County
Butler County
Clermont County
Warren County
Ranking of Ohio Counties By Population with Scotch Irish Ancestry in 2021
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Rank County Population
1 Franklin County 11543
2 Cuyahoga County 8169
3 Hamilton County 5892
4 Montgomery County 5106
5 Summit County 4957
6 Stark County 4089
7 Delaware County 2822
8 Butler County 2798
9 Clermont County 2458
10 Warren County 2343
11 Lucas County 2256
12 Licking County 2250
13 Lorain County 2187
14 Greene County 2097
15 Fairfield County 2081
16 Lake County 1974
17 Mahoning County 1766
18 Clark County 1726
19 Columbiana County 1664
20 Trumbull County 1616
21 Medina County 1491
22 Portage County 1472
23 Wayne County 1204
24 Athens County 1193
25 Wood County 1183
26 Richland County 1150
27 Tuscarawas County 1149
28 Jefferson County 1105
29 Ross County 1005
30 Washington County 918
31 Ashtabula County 880
32 Miami County 863
33 Allen County 858
34 Lawrence County 850
35 Belmont County 724
36 Scioto County 717
37 Muskingum County 706
38 Pickaway County 701
39 Madison County 676
40 Hancock County 655
41 Geauga County 653
42 Ashland County 637
43 Wyandot County 626
44 Carroll County 602
45 Marion County 598
46 Union County 581
47 Guernsey County 567
48 Logan County 524
49 Crawford County 513
50 Knox County 506
51 Erie County 482
51 Highland County 482
52 Huron County 445
53 Clinton County 432
54 Coshocton County 399
55 Preble County 373
56 Vinton County 358
57 Pike County 357
58 Seneca County 335
59 Morrow County 331
60 Fayette County 302
61 Hardin County 298
62 Perry County 297
63 Shelby County 284
64 Brown County 277
65 Adams County 276
66 Ottawa County 273
67 Harrison County 267
68 Champaign County 257
69 Defiance County 250
70 Fulton County 239
71 Darke County 226
72 Meigs County 225
73 Sandusky County 224
74 Auglaize County 217
75 Williams County 210
76 Noble County 203
77 Jackson County 191
78 Henry County 186
79 Gallia County 185
80 Mercer County 138
81 Putnam County 112
82 Van Wert County 109
83 Morgan County 84
84 Hocking County 72
85 Holmes County 68
86 Paulding County 65
87 Monroe County 48