Post Offices in Barnwell, South Carolina

United States Postal Service

(800) 275-8777

221 Main St

Barnwell, South Carolina

United States Postal Service

(800) 275-8777

75 State Rd S-6-128

Barnwell, South Carolina

US Post Office

(803) 259-3195

75 State Rd S-6-134

Barnwell, South Carolina