| Sumter to Clemson (South Carolina) | 147.34 mi (237.12 km) |
| Sumter to Clermont (Florida) | 381.70 mi (614.29 km) |
| Sumter to Cleveland (Mississippi) | 593.03 mi (954.39 km) |
| Sumter to Cleveland (Ohio) | 525.48 mi (845.69 km) |
| Sumter to Cleveland (Tennessee) | 268.83 mi (432.63 km) |
| Sumter to Cleveland Heights (Ohio) | 527.06 mi (848.22 km) |
| Sumter to Cliffside Park (New Jersey) | 591.08 mi (951.25 km) |
| Sumter to Clifton (Colorado) | 1,591.83 mi (2,561.81 km) |
| Sumter to Clifton (New Jersey) | 587.84 mi (946.04 km) |
| Sumter to Clinton (Iowa) | 764.89 mi (1,230.98 km) |
| Sumter to Clinton (Maryland) | 384.80 mi (619.28 km) |
| Sumter to Clinton (Mississippi) | 585.53 mi (942.32 km) |
| Sumter to Clinton (Utah) | 1,794.05 mi (2,887.24 km) |
| Sumter to Clive (Iowa) | 902.22 mi (1,451.98 km) |
| Sumter to Cloquet (Minnesota) | 1,086.38 mi (1,748.36 km) |
