Live Chat I-77 Community Nearby Traffic United States Post Office (Amenity postoffice) 2024-05-20 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to United States Post Office (Amenity Postoffice) Columbia, SC 0.00 Cayce, SC 9.93 West Columbia, SC 11.09 Interstate highway exits close to United States Post Office (Amenity Postoffice) Exit 10, i77 1.67 Exit 12, i77 2.84 Exit 9b a, i77 4.01 Interstate highways close to United States Post Office (Amenity Postoffice) i77 map 1.67 i20 map 7.50 i26 map 12.53 State roads close to United States Post Office (Amenity Postoffice) SC 16 map 0.75 SC 12 map 1.46 SC 760 map 1.47