Ohio Citizen Voting-age Population By County in 2021 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for Ohio was 8,909,365 and represented 75.70% of the total Ohio population.
Among all Ohio counties, Cuyahoga had the highest citizen voting-age population (968.40K), followed by Franklin (938.91K), and Hamilton (613.07K).
In terms of percentages, Athens had the highest percentage of its population being citizens of voting-age (82.43%), followed by Ottawa (81.10%), and Noble (80.83%).
The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.
You can see similar information for other states and by state for the United States.
| County | Citizen Voting-age Population | % of County Population |
|---|---|---|
| Cuyahoga | 968395 | 76.63 |
| Franklin | 938910 | 71.48 |
| Hamilton | 613065 | 74.15 |
| Summit | 415845 | 76.93 |
| Montgomery | 404695 | 75.48 |
| Lucas | 325115 | 75.40 |
| Stark | 290390 | 77.50 |
| Butler | 283465 | 73.09 |
| Lorain | 239510 | 76.83 |
| Lake | 180860 | 77.89 |
| Mahoning | 180835 | 78.95 |
| Warren | 172495 | 72.01 |
| Trumbull | 159820 | 79.04 |
| Clermont | 157940 | 76.06 |
| Delaware | 148135 | 70.17 |
| Medina | 139385 | 76.82 |
| Licking | 134600 | 75.85 |
| Greene | 129445 | 77.49 |
| Portage | 129235 | 79.83 |
| Fairfield | 116930 | 74.19 |
| Clark | 104100 | 76.53 |
| Wood | 102875 | 77.98 |
| Richland | 96600 | 77.59 |
| Wayne | 86895 | 74.36 |
| Miami | 81635 | 75.66 |
| Columbiana | 81155 | 79.31 |
| Allen | 77900 | 76.03 |
| Ashtabula | 75585 | 77.23 |
| Geauga | 72895 | 76.40 |
| Tuscarawas | 70665 | 75.96 |
| Muskingum | 66515 | 77.03 |
| Ross | 60345 | 78.16 |
| Erie | 59560 | 78.83 |
| Scioto | 57855 | 77.77 |
| Hancock | 56930 | 75.77 |
| Belmont | 54160 | 80.75 |
| Jefferson | 52585 | 80.14 |
| Athens | 51875 | 82.43 |
| Marion | 51235 | 78.20 |
| Washington | 47580 | 79.38 |
| Knox | 47570 | 76.23 |
| Pickaway | 45675 | 78.13 |
| Lawrence | 45460 | 77.62 |
| Sandusky | 45450 | 77.01 |
| Union | 45230 | 73.22 |
| Huron | 44105 | 75.28 |
| Seneca | 42665 | 77.34 |
| Ashland | 40370 | 76.66 |
| Darke | 39280 | 75.77 |
| Shelby | 35920 | 74.36 |
| Logan | 35095 | 76.30 |
| Auglaize | 34800 | 75.19 |
| Madison | 34415 | 78.31 |
| Brown | 33525 | 76.72 |
| Ottawa | 32830 | 81.10 |
| Highland | 32605 | 75.54 |
| Crawford | 32390 | 77.23 |
| Fulton | 32275 | 75.57 |
| Clinton | 31770 | 75.56 |
| Preble | 31680 | 77.22 |
| Mercer | 30735 | 72.91 |
| Holmes | 30415 | 68.87 |
| Champaign | 29935 | 77.39 |
| Guernsey | 29890 | 77.56 |
| Defiance | 29125 | 75.99 |
| Williams | 28290 | 76.41 |
| Coshocton | 27830 | 76.00 |
| Perry | 27070 | 76.38 |
| Morrow | 26945 | 77.23 |
| Putnam | 25375 | 73.78 |
| Jackson | 24630 | 75.72 |
| Hardin | 23360 | 75.99 |
| Gallia | 22495 | 76.59 |
| Hocking | 21990 | 78.03 |
| Van Wert | 21935 | 76.14 |
| Fayette | 21725 | 75.19 |
| Carroll | 21295 | 79.27 |
| Henry | 20945 | 75.83 |
| Adams | 20845 | 75.62 |
| Pike | 20670 | 75.80 |
| Meigs | 17255 | 77.17 |
| Wyandot | 16745 | 76.34 |
| Paulding | 14230 | 75.45 |
| Harrison | 11460 | 78.36 |
| Noble | 11450 | 80.83 |
| Morgan | 10985 | 78.72 |
| Monroe | 10660 | 78.88 |
| Vinton | 9940 | 77.32 |
