| Post Office | Bangor |
| Division | Penobscot |
| Pincode | 4401 |
| Post Office | Old Town |
| Division | Penobscot |
| Pincode | 4468 |
| Post Office | Brewer |
| Division | Penobscot |
| Pincode | 4412 |
| Post Office | Hampden |
| Division | Penobscot |
| Pincode | 4444 |
| Post Office | Orono |
| Division | Penobscot |
| Pincode | 4473 |
| Post Office | Lincoln |
| Division | Penobscot |
| Pincode | 4457 |
| Post Office | Holden |
| Division | Penobscot |
| Pincode | 4429 |
| Post Office | Millinocket |
| Division | Penobscot |
| Pincode | 4462 |
| Post Office | Dexter |
| Division | Penobscot |
| Pincode | 4930 |
45 City in Penobscot | List of Zip Codes Location In Maine and Your selected County Penobscot