Where to vote: Ohio voter lookup (state election office).
Registered voters, 2008-2024
EAVS counts, every two years.
Survey estimate: reported registration, 1972-2024
Current Population Survey: adults who said they were registered.
By county, 2024
EAVS 2024 by county-equivalent; citizens 18+ from the Census Bureau's 2020-2024 estimate.
| County | Registered | Active | Inactive | Citizens 18+ | Active, % of citizens 18+ |
|---|---|---|---|---|---|
| Adams | 17,674 | 17,674 | 20,824 | 84.9% | |
| Allen | 66,201 | 46,803 | 19,398 | 76,554 | 61.1% |
| Ashland | 34,756 | 34,756 | 40,206 | 86.4% | |
| Ashtabula | 61,356 | 61,356 | 75,045 | 81.8% | |
| Athens | 32,900 | 32,900 | 0 | 51,199 | 64.3% |
| Auglaize | 32,887 | 24,932 | 7,955 | 35,024 | 71.2% |
| Belmont | 44,628 | 34,676 | 9,841 | 52,943 | 65.5% |
| Brown | 29,541 | 29,541 | 33,727 | 87.6% | |
| Butler | 255,570 | 254,624 | 946 | 286,457 | 88.9% |
| Carroll | 18,409 | 16,027 | 2,382 | 21,171 | 75.7% |
| Champaign | 27,055 | 18,469 | 8,586 | 30,092 | 61.4% |
| Clark | 87,957 | 87,638 | 319 | 102,475 | 85.5% |
| Clermont | 151,043 | 150,310 | 733 | 162,461 | 92.5% |
| Clinton | 27,898 | 22,597 | 5,301 | 31,916 | 70.8% |
| Columbiana | 65,979 | 45,821 | 20,158 | 79,854 | 57.4% |
| Coshocton | 22,494 | 22,494 | 0 | 27,916 | 80.6% |
| Crawford | 28,064 | 28,064 | 32,378 | 86.7% | |
| Cuyahoga | 893,801 | 694,418 | 199,188 | 958,739 | 72.4% |
| Darke | 35,030 | 35,030 | 39,067 | 89.7% | |
| Defiance | 22,248 | 14,119 | 8,129 | 29,524 | 47.8% |
| Delaware | 165,371 | 163,744 | 1,107 | 160,739 | 101.9%* |
| Erie | 54,260 | 53,946 | 314 | 59,007 | 91.4% |
| Fairfield | 112,016 | 112,016 | 122,338 | 91.6% | |
| Fayette | 17,449 | 17,449 | 21,831 | 79.9% | |
| Franklin | 903,248 | 737,565 | 165,683 | 946,203 | 77.9% |
| Fulton | 29,566 | 19,625 | 9,941 | 32,122 | 61.1% |
| Gallia | 19,031 | 18,913 | 0 | 22,131 | 85.5% |
| Geauga | 69,032 | 69,032 | 73,943 | 93.4% | |
| Greene | 122,193 | 122,193 | 131,935 | 92.6% | |
| Guernsey | 24,501 | 24,501 | 29,595 | 82.8% | |
| Hamilton | 604,199 | 475,116 | 129,083 | 614,988 | 77.3% |
| Hancock | 51,936 | 41,748 | 10,188 | 57,111 | 73.1% |
| Hardin | 17,922 | 13,107 | 4,815 | 23,368 | 56.1% |
| Harrison | 9,890 | 9,890 | 11,288 | 87.6% | |
| Henry | 19,433 | 16,263 | 3,170 | 21,046 | 77.3% |
| Highland | 27,611 | 27,611 | 32,954 | 83.8% | |
| Hocking | 18,430 | 16,415 | 1,803 | 21,799 | 75.3% |
| Holmes | 18,085 | 15,523 | 2,562 | 30,902 | 50.2% |
| Huron | 36,967 | 29,417 | 7,550 | 43,979 | 66.9% |
| Jackson | 20,694 | 20,340 | 354 | 24,737 | 82.2% |
| Jefferson | 45,726 | 45,726 | 0 | 51,758 | 88.3% |
| Knox | 43,806 | 32,974 | 10,832 | 48,210 | 68.4% |
| Lake | 165,578 | 145,320 | 20,258 | 183,503 | 79.2% |
| Lawrence | 43,020 | 33,556 | 9,464 | 44,361 | 75.6% |
| Licking | 128,657 | 128,657 | 138,167 | 93.1% | |
| Logan | 32,330 | 32,330 | 35,229 | 91.8% | |
| Lorain | 221,647 | 221,647 | 245,284 | 90.4% | |
| Lucas | 251,632 | 161,772 | 89,860 | 324,542 | 49.8% |
| Madison | 27,191 | 19,938 | 7,252 | 35,180 | 56.7% |
| Mahoning | 163,093 | 127,244 | 35,849 | 178,434 | 71.3% |
| Marion | 39,576 | 28,784 | 10,117 | 50,845 | 56.6% |
| Medina | 134,574 | 134,574 | 142,726 | 94.3% | |
| Meigs | 14,916 | 12,592 | 2,192 | 17,315 | 72.7% |
| Mercer | 29,691 | 25,830 | 3,861 | 31,113 | 83.0% |
| Miami | 78,731 | 78,731 | 0 | 83,936 | 93.8% |
| Monroe | 9,326 | 9,326 | 10,501 | 88.8% | |
| Montgomery | 373,580 | 373,166 | 414 | 405,073 | 92.1% |
| Morgan | 9,188 | 9,188 | 10,769 | 85.3% | |
| Morrow | 24,667 | 20,491 | 4,176 | 27,621 | 74.2% |
| Muskingum | 54,637 | 54,461 | 176 | 66,512 | 81.9% |
| Noble | 8,081 | 8,081 | 11,529 | 70.1% | |
| Ottawa | 30,695 | 25,850 | 4,845 | 32,802 | 78.8% |
| Paulding | 12,665 | 12,665 | 14,119 | 89.7% | |
| Perry | 22,901 | 27,080 | |||
| Pickaway | 38,574 | 38,574 | 47,010 | 82.1% | |
| Pike | 18,011 | 18,011 | 20,626 | 87.3% | |
| Portage | 111,135 | 64,186 | 46,949 | 129,535 | 49.6% |
| Preble | 28,920 | 28,920 | 31,613 | 91.5% | |
| Putnam | 24,016 | 11,796 | 6,994 | 25,313 | 46.6% |
| Richland | 80,649 | 80,649 | 97,201 | 83.0% | |
| Ross | 39,883 | 26,361 | 13,415 | 60,113 | 43.9% |
| Sandusky | 40,511 | 34,528 | 5,851 | 45,611 | 75.7% |
| Scioto | 44,713 | 37,252 | 7,461 | 56,542 | 65.9% |
| Seneca | 34,779 | 34,779 | 42,675 | 81.5% | |
| Shelby | 32,947 | 32,947 | 35,941 | 91.7% | |
| Stark | 253,599 | 208,575 | 45,024 | 289,977 | 71.9% |
| Summit | 382,722 | 382,722 | 0 | 414,626 | 92.3% |
| Trumbull | 137,685 | 136,878 | 807 | 158,959 | 86.1% |
| Tuscarawas | 44,321 | 44,258 | 63 | 69,736 | 63.5% |
| Union | 47,353 | 37,686 | 9,667 | 49,310 | 76.4% |
| Van Wert | 20,490 | 14,377 | 5,172 | 21,972 | 65.4% |
| Vinton | 7,812 | 5,350 | 2,462 | 10,003 | 53.5% |
| Warren | 178,612 | 178,612 | 181,036 | 98.7% | |
| Washington | 42,814 | 36,929 | 1,392 | 46,992 | 78.6% |
| Wayne | 70,625 | 70,388 | 237 | 87,142 | 80.8% |
| Williams | 25,160 | 25,160 | 0 | 28,361 | 88.7% |
| Wood | 90,695 | 74,322 | 16,373 | 103,139 | 72.1% |
| Wyandot | 14,839 | 12,140 | 2,699 | 16,557 | 73.3% |
* Active registered voters exceed the Census estimate of citizens 18+: list maintenance or CVAP margin.
About these figures
Counts are what state election offices report to the US Election Assistance Commission (EAVS) after each November election; questions and state practice change between years. The share is active voters over the Census Bureau's citizen voting-age population estimate (CVAP). The survey line is self-reported (Current Population Survey) and kept separate from the office counts.
Ohio registers voters by party; its figures are not yet collected here.
Registration counts: US Election Assistance Commission, Election Administration and Voting Survey 2008-2024 (public domain).
Citizen voting-age population: US Census Bureau, CVAP special tabulation, 2020-2024 ACS (public domain). Survey estimate: US Census Bureau, Current Population Survey voting and registration tables A-5b and A-3b (public domain).
PollCheck US. Data through November 5, 2026. Photo credits