| Locality | Post Code |
|---|---|
| Adrian, Wyandot | 43316 |
| Belle Vernon, Wyandot | 44882 |
| Benton, Wyandot | 44882 |
| Carey, Wyandot | 43316 |
| Deunquat, Wyandot | 44882 |
| Edenville, Wyandot | 44849 |
| Harpster, Wyandot | 43323 |
| Kirby, Wyandot | 43330 |
| Lemert, Wyandot | 44882 |
| Little York, Wyandot | 44849 |
| McCutchenville, Wyandot | 44844 |
| Nevada, Wyandot | 44849 |
| Plankton, Wyandot | 44882 |
| Sycamore, Wyandot | 44882 |
| Upper Sandusky, Wyandot | 43351 |
| Wharton, Wyandot | 43359 |
| Wyandot, Wyandot | 44849 |