Live Chat I-77 Community Nearby Traffic US 321 SC 2024-06-05 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 321 SC Columbia, SC 11.31 Elgin, SC 16.19 Ridgeway, SC 16.98 Interstate highway exits close to US 321 SC Exit 27, i77 1.59 Exit 24, i77 3.49 Exit 22, i77 7.49 Interstate highways close to US 321 SC i77 map 1.59 i20 map 14.10 i26 map 20.47 State roads close to US 321 SC US 21 SC map 1.33 SC 555 map 2.56 US 321 SC map 5.42