Live Chat I-77 Community Nearby Traffic US 21 SC 2024-06-13 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 21 SC Charlotte, NC 4.23 Fort Mill, SC 7.62 Van Wyck, SC 12.97 Interstate highway exits close to US 21 SC Exit 90, i77 4.01 Exit 1, i77 4.44 Exit 2, i77 5.98 Interstate highways close to US 21 SC i77 map 4.01 i85 map 17.16 i40 map 74.57 State roads close to US 21 SC NC 51 map 0.04 SC 51 map 2.58 US 21 SC map 3.82