| Locality | Post Code |
|---|---|
| Enfield, Penobscot | 04493 |
| Etna, Penobscot | 04434 |
| Exeter, Penobscot | 04435 |
| Garland, Penobscot | 04939 |
| Glenburn, Penobscot | 04401 |
| Greenbush, Penobscot | 04418 |
| Greenfield, Penobscot | 04418 |
| Grindstone, Penobscot | 04460 |
| Hampden, Penobscot | 04444 |
| Hermon, Penobscot | 04401 |
| Herseytown, Penobscot | 04777 |
| Holden, Penobscot | 04429 |
| Howland, Penobscot | 04448 |
| Hudson, Penobscot | 04449 |
| Indian Island, Penobscot | 04468 |
| Indian Purchase, Penobscot | 04462 |
| Kenduskeag, Penobscot | 04450 |
| Kingman, Penobscot | 04451 |
| Lagrange, Penobscot | 04453 |
| Lakeville, Penobscot | 04487 |
| Lee, Penobscot | 04455 |
| Levant, Penobscot | 04456 |
| Lincoln, Penobscot | 04457 |
| Long A, Penobscot | 04462 |
| Lowell, Penobscot | 04493 |
| Mattamisc, Penobscot | 04457 |
| Maine Postal Codes | |
|---|---|
| York | Washington |
| Waldo | Somerset |
| Sagadahoc | Piscataquis |
| Penobscot | Oxford |
| Lincoln | Knox |
| Kennebec | Hancock |
| Franklin | Cumberland |
| Aroostook | Androscoggin |