The graph below ranks each Ohio County by total of Mixed Race residents according to the 2012 census estimates.
Ohio total of Mixed Race population by county
| County | Mixed Race Population |
| Franklin |  34,686 |
| Cuyahoga | 24,055 |
| Hamilton | 16,853 |
| Montgomery | 12,870 |
| Lucas | 11,804 |
| Summit | 11,363 |
| Stark | 8,252 |
| Lorain | 7,842 |
| Butler | 7,419 |
| Mahoning | 4,474 |
| Greene | 4,260 |
| Clark | 3,547 |
| Trumbull | 3,526 |
| Lake | 3,213 |
| Licking | 3,187 |
| Delaware | 3,080 |
| Warren | 3,042 |
| Fairfield | 2,803 |
| Allen | 2,739 |
| Portage | 2,622 |
| Clermont | 2,588 |
| Richland | 2,329 |
| Medina | 2,085 |
| Erie | 2,063 |
| Muskingum | 2,062 |
| Ashtabula | 2,006 |
| Wood | 1,931 |
| Miami | 1,752 |
| Ross | 1,627 |
| Wayne | 1,609 |
| Columbiana | 1,384 |
| Athens | 1,354 |
| Scioto | 1,336 |
| Sandusky | 1,270 |
| Jefferson | 1,162 |
| Hancock | 1,135 |
| Marion | 1,059 |
| Tuscarawas | 1,016 |
| Seneca | 953 |
| Washington | 922 |
| Belmont | 905 |
| Huron | 889 |
| Logan | 863 |
| Shelby | 836 |
| Lawrence | 807 |
| Clinton | 754 |
| Champaign | 752 |
| Geauga | 751 |
| Pickaway | 733 |
| Knox | 730 |
| Guernsey | 717 |
| Union | 686 |
| Madison | 645 |
| Highland | 603 |
| Ashland | 532 |
| Darke | 525 |
| Defiance | 505 |
| Perry | 504 |
| Ottawa | 496 |
| Gallia | 493 |
| Morrow | 490 |
| Brown | 489 |
| Pike | 485 |
| Crawford | 472 |
| Morgan | 463 |
| Fayette | 462 |
| Jackson | 461 |
| Preble | 461 |
| Auglaize | 459 |
| Fulton | 426 |
| Hardin | 412 |
| Coshocton | 405 |
| Williams | 375 |
| Adams | 369 |
| Mercer | 368 |
| Van Wert | 345 |
| Hocking | 323 |
| Carroll | 314 |
| Paulding | 270 |
| Meigs | 260 |
| Henry | 253 |
| Harrison | 251 |
| Holmes | 215 |
| Putnam | 205 |
| Wyandot | 203 |
| Monroe | 175 |
| Vinton | 159 |
| Noble | 102 |