| Locality | Post Code |
|---|---|
| Clarington, Forest | 15828 |
| Cooksburg, Forest | 16217 |
| East Hickory, Forest | 16321 |
| Endeavor, Forest | 16322 |
| Marienville, Forest | 16239 |
| Pleasantville, Forest | 16341 |
| Sheffield, Forest | 16347 |
| Starr, Forest | 16353 |
| Tidioute, Forest | 16351 |
| Tionesta, Forest | 16353 |
| Vowinckel, Forest | 16260 |
| West Hickory, Forest | 16370 |