| Adams County Board of Elections | (937) 544-2633 |
| Allen County Board of Elections | (419) 223-8530 |
| Ashland County Board of Elections | (419) 282-4224 |
| Ashtabula County Board of Elections | (440) 576-6915 |
| Athens County Board of Elections | (740) 592-3201 |
| Auglaize County Board of Elections | (419) 739-6720 |
| Belmont County Board of Elections | (740) 676-1025 |
| Brown County Board of Elections | (937) 378-3008 |
| Butler County Board of Elections | (513) 887-3700 |
| Carroll County Board of Elections | (330) 627-2610 |
| Champaign County Board of Elections | (937) 484-1575 |
| Clark County Board of Elections | (937) 328-2491 |
| Clermont County Board of Elections | (513) 732-7275 |
| Clinton County Board of Elections | (937) 382-3537 |
| Columbiana County Board of Elections | (330) 424-1448 |
| Coshocton County Board of Elections | (740) 622-1117 |
| Crawford County Board of Elections | (419) 562-8721 |
| Cuyahoga County Board of Elections | (216) 443-3200 |
| Darke County Board of Electionns | (937) 548-1835 |
| Defiance County Board of Elections | (419) 782-2906 |
| Delaware County Board of Elections | (740) 833-2080 |
| Erie County Board of Elections | (419) 627-7601 |
| Fairfield County Board of Elections | (740) 687-7000 |
| Fayette County Board of Elections | (740) 335-1190 |
| Franklin County Board of Elections | (614) 462-3100 |
| Fulton County Board of Elections | (419) 335-6841 |
| Gallia County Board of Elections | (740) 446-1600 |
| Geauga County Board of Elections | (440) 285-2222 |
| Greene County Board of Elections | (937) 562-7470 |
| Guernsey County Board of Elections | (740) 432-2680 |
| Hamilton County Board of Elections | (513) 632-7000 |
| Hancock County Board of Elections | (419) 422-3245 |
| Hardin County Board of Elections | (419) 674-2211 |
| Harrison County Board of Elections | (740) 942-8866 |
| Henry County Board of Elections | (419) 592-7956 |
| Highland County Board of Elections | (937) 393-9961 |
| Hocking County Board of Elections | (740) 380-8683 |
| Holmes County Board of Elections | (330) 674-5921 |
| Huron County Board of Elections | (419) 668-8238 |
| Jackson County Board of Elections | (740) 286-2905 |
| Jefferson County Board of Elections | (740) 283-8522 |
| Knox County Board of Elections | (740) 393-6716 |
| Lake County Board of Elections | (440) 350-2700 |
| Lawrence County Board of Elections | (740) 532-0444 |
| Licking County Board of Elections | (740) 670-5080 |
| Logan County Board of Elections | (937) 599-7255 |
| Lorain County Board of Elections | (440) 326-5900 |
| Lucas County Board of Elections | (419) 213-4001 |
| Madison County Board of Elections | (740) 852-9424 |
| Mahoning County Board of Elections | (330) 783-2474 |
| Marion County Board of Elections | (740) 223-4090 |
| Medina County Board of Elections | (330) 722-9278 |
| Meigs County Board of Elections | (740) 992-2697 |
| Mercer County Board of Elections | (419) 586-2215 |
| Miami County Board of Elections | (937) 440-3900 |
| Monroe County Board of Elections | (740) 472-0929 |
| Montgomery County Board of Elections | (937) 225-5656 |
| Morgan County Board of Elections | (740) 962-3116 |
| Morrow County Board of Elections | (419) 946-4026 |
| Muskingum County Board of Elections | (740) 455-7120 |
| Noble County Board of Elections | (740) 732-2057 |
| Ottawa County Board of Elections | (419) 898-3071 |
| Paulding County Board of Elections | (419) 399-8230 |
| Perry County Board of Elections | (740) 342-2134 |
| Pickaway County Board of Elections | (740) 474-1100 |
| Pike County Board of Elections | (740) 947-4512 |
| Portage County Board of Elections | (330) 297-3511 |
| Preble County Board of Elections | (937) 456-8117 |
| Putnam County Board of Elections | (419) 523-3343 |
| Richland County Board of Elections | (419) 774-5530 |
| Ross County Board of Elections | (740) 775-2350 |
| Sandusky County Board of Elections | (419) 334-6180 |
| Scioto County Board of Elections | (740) 353-4178 |
| Seneca County Board of Elections | (419) 447-4424 |
| Shelby County Board of Elections | (937) 498-7207 |
| Stark County Board of Elections | (330) 451-8683 |
| Summit County Board of Elections | (330) 643-5200 |
| Trumbull County Board of Elections | (330) 369-4050 |
| Tuscarawas County Board of Elections | (330) 343-8819 |
| Union County Board of Elections | (937) 642-2836 |
| Van Wert County Board of Elections | (419) 238-4192 |
| Vinton County Board of Elections | (740) 596-5855 |
| Warren County Board of Elections | (513) 695-1358 |
| Washington County Board of Elections | (740) 374-6828 |
| Wayne County Board of Elections | (330) 287-5480 |
| Williams County Board of Elections | (419) 636-1854 |
| Wood County Board of Elections | (419) 354-9120 |
| Wyandot County Board of Elections | (419) 294-1226 |