| Place Name | Mark Center |
| Place Type | Unincorporated |
| ZIP Code(s) | 43536 |
| County | Defiance County |
| Area Code(s) | 419,567 |
| Timezone | Eastern Daylight Time (EDT) |
| Population () | |
| Metro/Micro Stats Area | Defiance, OH |
| US Congressional District(s) | Ohio 9th |
| State House Districts | 82 |
| State Senate Districts | 1 |