USPS - Postal Service in Johnston - Locations & Hours
| Name | Address | Phone | |
|---|---|---|---|
| USPS - Post Office - Johnston | 519 Calhoun St | 803-275-0495 | |
| USPS Mail Collection/Drop Box - 432 W Calhoun St | 432 W Calhoun St | ||
| USPS Mail Collection/Drop Box - 519 Calhoun St | 519 Calhoun St | ||