| Post Office | Butler |
| Division | Butler |
| Pincode | 16001 |
| Post Office | Cranberry Township |
| Division | Butler |
| Pincode | 16066 |
| Post Office | Mars |
| Division | Butler |
| Pincode | 16046 |
| Post Office | Butler |
| Division | Butler |
| Pincode | 16002 |
| Post Office | Slippery Rock |
| Division | Butler |
| Pincode | 16057 |
| Post Office | Valencia |
| Division | Butler |
| Pincode | 16059 |
| Post Office | Sarver |
| Division | Butler |
| Pincode | 16055 |
| Post Office | Zelienople |
| Division | Butler |
| Pincode | 16063 |
| Post Office | Evans City |
| Division | Butler |
| Pincode | 16033 |
31 City in Butler | List of Zip Codes Location In Pennsylvania and Your selected County Butler