| Sumter to Cullman (Alabama) | 369.38 mi (594.46 km) |
| Sumter to Culpeper (Virginia) | 340.28 mi (547.62 km) |
| Sumter to Culver City (California) | 2,164.77 mi (3,483.87 km) |
| Sumter to Cumberland (Maryland) | 404.89 mi (651.61 km) |
| Sumter to Cupertino (California) | 2,332.04 mi (3,753.06 km) |
| Sumter to Cutler Bay (Florida) | 577.82 mi (929.91 km) |
| Sumter to Cutlerville (Michigan) | 677.87 mi (1,090.93 km) |
| Sumter to Cuyahoga Falls (Ohio) | 502.99 mi (809.48 km) |
| Sumter to Cypress (California) | 2,147.06 mi (3,455.36 km) |
| Sumter to Cypress Gardens (Florida) | 417.19 mi (671.40 km) |
| Sumter to Cypress Lake (Florida) | 519.12 mi (835.44 km) |
| Sumter to D'Iberville (Mississippi) | 551.86 mi (888.13 km) |
| Sumter to Dakota Ridge (Colorado) | 1,419.17 mi (2,283.94 km) |
| Sumter to Dale City (Virginia) | 366.84 mi (590.37 km) |
| Sumter to Dallas (Georgia) | 255.02 mi (410.42 km) |
