Post Offices List in Canonsburg City, Pennsylvania:
| Canonsburg Post Office | 120 W Pike St, Canonsburg, PA 15317 |
| MC Murray Post Office | 3935 Washington Rd, Canonsburg, PA 15317 |
| Canonsburg Carrier Annex Post Office | 14 Curry Ave, Canonsburg, PA 15317 |
| Canonsburg Post Office | 120 W Pike St, Canonsburg, PA 15317 |
| MC Murray Post Office | 3935 Washington Rd, Canonsburg, PA 15317 |
| Canonsburg Carrier Annex Post Office | 14 Curry Ave, Canonsburg, PA 15317 |