Post Offices List in Clairton City, Pennsylvania:
| Clairton Post Office | 445 Saint Clair Ave, Clairton, PA 15025 |
| Large Post Office | 1613 Route 51, Clairton, PA 15025 |
| Clairton Post Office | 445 Saint Clair Ave, Clairton, PA 15025 |
| Large Post Office | 1613 Route 51, Clairton, PA 15025 |