Ranking of Ohio Counties By Percentage of Population with American Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 734.33K people in Ohio with American ancestry (6.24% of Ohio population). Among all Ohio counties, Trumbull County had the highest percentage of its population with American ancestry (22.14%), followed by Madison County (14.08%), and Preble County (13.11%).

The chart and table below shows the top 10 counties with high percentage of its population having American 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 Percentage of Population with American Ancestry in 2021
Trumbull County
Madison County
Preble County
Ashtabula County
Brown County
Highland County
Hancock County
Union County
Hocking County
Holmes County
Ranking of Ohio Counties By Percentage of Population with American Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Trumbull County 22.14
2 Madison County 14.08
3 Preble County 13.11
4 Ashtabula County 12.99
5 Brown County 12.13
6 Highland County 11.77
7 Hancock County 11.75
8 Union County 11.41
9 Hocking County 11.37
10 Holmes County 11.16
11 Morgan County 10.60
12 Ross County 10.38
13 Henry County 10.24
14 Pike County 10.09
15 Fayette County 10.07
16 Darke County 9.93
17 Marion County 9.90
18 Adams County 9.84
19 Gallia County 9.76
20 Lawrence County 9.43
21 Mercer County 9.42
22 Muskingum County 9.22
23 Hardin County 9.19
23 Morrow County 9.19
24 Huron County 9.06
25 Scioto County 9.05
26 Lorain County 9.04
27 Miami County 8.92
28 Monroe County 8.85
29 Champaign County 8.82
30 Vinton County 8.78
31 Noble County 8.73
32 Pickaway County 8.69
33 Crawford County 8.49
34 Clermont County 8.38
35 Washington County 8.35
36 Coshocton County 8.15
37 Fairfield County 8.11
38 Guernsey County 8.06
39 Clark County 8.00
40 Clinton County 7.99
41 Putnam County 7.97
42 Meigs County 7.86
43 Columbiana County 7.77
43 Logan County 7.77
44 Jackson County 7.74
45 Knox County 7.69
46 Wyandot County 7.67
47 Richland County 7.66
48 Wayne County 7.16
49 Defiance County 7.12
50 Greene County 6.93
50 Tuscarawas County 6.93
51 Williams County 6.82
52 Shelby County 6.76
53 Licking County 6.60
54 Van Wert County 6.59
55 Portage County 6.46
56 Allen County 6.44
57 Auglaize County 6.41
58 Paulding County 6.28
59 Butler County 6.27
60 Carroll County 6.11
60 Perry County 6.11
61 Mahoning County 5.99
62 Sandusky County 5.95
63 Belmont County 5.74
64 Montgomery County 5.69
65 Warren County 5.68
66 Erie County 5.67
67 Ashland County 5.60
67 Seneca County 5.60
68 Fulton County 5.59
69 Athens County 5.23
70 Ottawa County 5.03
71 Medina County 5.00
72 Delaware County 4.79
73 Stark County 4.75
74 Wood County 4.69
75 Hamilton County 4.68
76 Lucas County 4.54
77 Franklin County 4.48
78 Summit County 4.33
79 Geauga County 4.18
80 Harrison County 3.88
81 Lake County 3.72
82 Cuyahoga County 2.92
83 Jefferson County 2.71