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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 55.16K people in Ohio with Czech ancestry (0.47% of Ohio population). Among all Ohio counties, Geauga County had the highest percentage of its population with Czech ancestry (1.74%), followed by Medina County (1.56%), and Portage County (1.35%).

The chart and table below shows the top 10 counties with high percentage of its population having Czech 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 Czech Ancestry in 2021
Geauga County
Medina County
Portage County
Cuyahoga County
Lake County
Belmont County
Williams County
Ashtabula County
Defiance County
Summit County
Ranking of Ohio Counties By Percentage of Population with Czech Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Geauga County 1.74
2 Medina County 1.56
3 Portage County 1.35
4 Cuyahoga County 1.12
5 Lake County 1.03
6 Belmont County 0.93
7 Williams County 0.79
8 Ashtabula County 0.78
9 Defiance County 0.75
10 Summit County 0.74
11 Noble County 0.71
12 Wood County 0.68
13 Jefferson County 0.61
13 Lorain County 0.61
13 Wayne County 0.61
14 Delaware County 0.59
15 Fulton County 0.54
16 Monroe County 0.53
17 Washington County 0.48
18 Licking County 0.45
19 Ashland County 0.43
20 Greene County 0.42
20 Stark County 0.42
21 Erie County 0.41
22 Ottawa County 0.40
23 Henry County 0.39
23 Lucas County 0.39
24 Athens County 0.36
25 Warren County 0.35
26 Huron County 0.34
27 Franklin County 0.32
27 Guernsey County 0.32
27 Tuscarawas County 0.32
28 Columbiana County 0.31
28 Crawford County 0.31
28 Mahoning County 0.31
29 Hancock County 0.30
30 Harrison County 0.29
30 Trumbull County 0.29
31 Richland County 0.28
32 Fairfield County 0.27
33 Madison County 0.25
34 Carroll County 0.23
35 Clinton County 0.22
35 Coshocton County 0.22
35 Miami County 0.22
36 Clermont County 0.21
36 Montgomery County 0.21
37 Butler County 0.20
37 Pickaway County 0.20
38 Hamilton County 0.19
38 Knox County 0.19
38 Meigs County 0.19
39 Paulding County 0.18
40 Champaign County 0.17
41 Seneca County 0.16
42 Sandusky County 0.15
43 Fayette County 0.13
43 Hardin County 0.13
43 Muskingum County 0.13
43 Van Wert County 0.13
44 Mercer County 0.11
45 Allen County 0.10
46 Marion County 0.09
46 Preble County 0.09
47 Clark County 0.08
47 Holmes County 0.08
47 Perry County 0.08
47 Union County 0.08
48 Putnam County 0.06
48 Ross County 0.06
48 Wyandot County 0.06
49 Auglaize County 0.05
49 Brown County 0.05
49 Scioto County 0.05
50 Gallia County 0.04
50 Hocking County 0.04
50 Logan County 0.04
50 Morgan County 0.04
50 Morrow County 0.04
51 Darke County 0.03
51 Pike County 0.03
52 Shelby County 0.02
53 Lawrence County 0.01