Ranking of Ohio Counties By Percentage of Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.83M people in Ohio with Unclassified ancestry (24.00% of Ohio population). Among all Ohio counties, Pike County had the highest percentage of its population with Unclassified ancestry (49.90%), followed by Jackson County (49.83%), and Scioto County (48.13%).
The chart and table below shows the top 10 counties with high percentage of its population having Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in Ohio.
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Related Topics: Ohio ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Ohio Counties By Percentage of Population with Unclassified Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Pike County | 49.90 |
| 2 | Jackson County | 49.83 |
| 3 | Scioto County | 48.13 |
| 4 | Lawrence County | 47.96 |
| 5 | Adams County | 45.65 |
| 5 | Meigs County | 45.65 |
| 6 | Gallia County | 42.57 |
| 7 | Vinton County | 42.36 |
| 8 | Highland County | 39.65 |
| 9 | Harrison County | 38.53 |
| 10 | Monroe County | 38.41 |
| 11 | Morgan County | 38.22 |
| 12 | Hocking County | 38.20 |
| 13 | Brown County | 37.99 |
| 14 | Paulding County | 37.81 |
| 15 | Ross County | 36.79 |
| 16 | Perry County | 36.75 |
| 17 | Logan County | 36.69 |
| 18 | Morrow County | 36.67 |
| 19 | Muskingum County | 36.54 |
| 20 | Knox County | 36.22 |
| 21 | Preble County | 36.08 |
| 22 | Darke County | 35.98 |
| 23 | Fayette County | 35.77 |
| 24 | Clinton County | 35.76 |
| 25 | Van Wert County | 35.46 |
| 25 | Washington County | 35.46 |
| 26 | Guernsey County | 35.42 |
| 27 | Pickaway County | 35.15 |
| 28 | Champaign County | 34.20 |
| 29 | Ashland County | 33.36 |
| 30 | Shelby County | 33.33 |
| 31 | Noble County | 33.07 |
| 32 | Hardin County | 32.65 |
| 33 | Belmont County | 31.85 |
| 34 | Athens County | 31.65 |
| 34 | Clark County | 31.65 |
| 35 | Jefferson County | 31.03 |
| 36 | Wayne County | 30.89 |
| 37 | Licking County | 30.84 |
| 38 | Miami County | 30.81 |
| 39 | Marion County | 30.45 |
| 40 | Richland County | 30.06 |
| 41 | Tuscarawas County | 29.67 |
| 42 | Clermont County | 29.60 |
| 43 | Columbiana County | 29.34 |
| 44 | Williams County | 28.97 |
| 45 | Holmes County | 28.95 |
| 46 | Coshocton County | 28.74 |
| 47 | Carroll County | 28.68 |
| 47 | Wyandot County | 28.68 |
| 48 | Crawford County | 28.16 |
| 49 | Fairfield County | 27.90 |
| 50 | Huron County | 27.22 |
| 51 | Defiance County | 26.63 |
| 52 | Auglaize County | 26.39 |
| 53 | Allen County | 25.90 |
| 54 | Montgomery County | 25.66 |
| 55 | Seneca County | 24.90 |
| 56 | Greene County | 24.85 |
| 57 | Fulton County | 23.99 |
| 58 | Butler County | 23.61 |
| 59 | Stark County | 22.89 |
| 60 | Warren County | 22.81 |
| 61 | Ottawa County | 22.68 |
| 62 | Henry County | 22.55 |
| 63 | Trumbull County | 22.48 |
| 64 | Sandusky County | 22.38 |
| 65 | Madison County | 22.20 |
| 66 | Mercer County | 22.12 |
| 67 | Erie County | 22.05 |
| 68 | Portage County | 21.98 |
| 69 | Ashtabula County | 21.74 |
| 70 | Hamilton County | 21.39 |
| 71 | Summit County | 21.29 |
| 72 | Wood County | 21.16 |
| 73 | Lucas County | 20.93 |
| 74 | Franklin County | 20.63 |
| 75 | Hancock County | 20.50 |
| 76 | Delaware County | 20.35 |
| 77 | Medina County | 19.49 |
| 78 | Geauga County | 19.08 |
| 79 | Putnam County | 18.84 |
| 80 | Union County | 17.89 |
| 81 | Lake County | 17.79 |
| 82 | Lorain County | 17.04 |
| 83 | Mahoning County | 16.38 |
| 84 | Cuyahoga County | 15.32 |
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