| Post Office | Sunbury |
| Division | Northumberland |
| Pincode | 17801 |
| Post Office | Milton |
| Division | Northumberland |
| Pincode | 17847 |
| Post Office | Coal Township |
| Division | Northumberland |
| Pincode | 17866 |
| Post Office | Shamokin |
| Division | Northumberland |
| Pincode | 17872 |
| Post Office | Mount Carmel |
| Division | Northumberland |
| Pincode | 17851 |
| Post Office | Northumberland |
| Division | Northumberland |
| Pincode | 17857 |
| Post Office | Watsontown |
| Division | Northumberland |
| Pincode | 17777 |
| Post Office | Elysburg |
| Division | Northumberland |
| Pincode | 17824 |
| Post Office | Kulpmont |
| Division | Northumberland |
| Pincode | 17834 |
25 City in Northumberland | List of Zip Codes Location In Pennsylvania and Your selected County Northumberland