USPS - Postal Service in Saint Clair - Locations & Hours
| Name | Address | Phone | |
|---|---|---|---|
| USPS - Post Office - Saint Clair | 202 Trumbull St | 810-329-4555 | |
| USPS Mail Collection/Drop Box - 202 Trumbull St | 202 Trumbull St | ||
| USPS Mail Collection/Drop Box - 7053 Gratiot Rd | 7053 Gratiot Rd | ||