Williamstown zip code
Zip code in Williamstown, OH
The location Williamstown belongs to Hancock County, state of Ohio. Williamstown has been assigned with the zip code 45897.
Williamstown is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 45897 | STANDARD | 118 |
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