| Hilton Head Island to Castle Pines (Colorado) | 1,436.24 mi (2,311.40 km) |
| Hilton Head Island to Castle Rock (Colorado) | 1,434.02 mi (2,307.84 km) |
| Hilton Head Island to Castro Valley (California) | 2,351.34 mi (3,784.12 km) |
| Hilton Head Island to Catalina Foothills (Arizona) | 1,755.03 mi (2,824.45 km) |
| Hilton Head Island to Cataño (Puerto Rico) | 1,314.36 mi (2,115.26 km) |
| Hilton Head Island to Cathedral City (California) | 2,061.99 mi (3,318.45 km) |
| Hilton Head Island to Catonsville (Maryland) | 537.88 mi (865.64 km) |
| Hilton Head Island to Cave Spring (Virginia) | 350.48 mi (564.05 km) |
| Hilton Head Island to Cayce (South Carolina) | 122.53 mi (197.19 km) |
| Hilton Head Island to Cayey (Puerto Rico) | 1,330.47 mi (2,141.19 km) |
| Hilton Head Island to Cedar City (Utah) | 1,861.35 mi (2,995.55 km) |
| Hilton Head Island to Cedar Falls (Iowa) | 958.63 mi (1,542.77 km) |
| Hilton Head Island to Cedar Hill (Texas) | 945.23 mi (1,521.20 km) |
| Hilton Head Island to Cedar Lake (Indiana) | 733.82 mi (1,180.97 km) |
| Hilton Head Island to Cedar Mill (Oregon) | 2,409.78 mi (3,878.16 km) |
