| Swansea to Cullman (Alabama) | 349.11 mi (561.84 km) |
| Swansea to Culpeper (Virginia) | 647.57 mi (1,042.17 km) |
| Swansea to Culver City (California) | 1,606.62 mi (2,585.60 km) |
| Swansea to Cumberland (Maryland) | 606.38 mi (975.87 km) |
| Swansea to Cupertino (California) | 1,740.39 mi (2,800.88 km) |
| Swansea to Cutler Bay (Florida) | 1,058.15 mi (1,702.93 km) |
| Swansea to Cutlerville (Michigan) | 372.55 mi (599.55 km) |
| Swansea to Cuyahoga Falls (Ohio) | 483.66 mi (778.38 km) |
| Swansea to Cypress (California) | 1,591.69 mi (2,561.58 km) |
| Swansea to Cypress Gardens (Florida) | 871.38 mi (1,402.36 km) |
| Swansea to Cypress Lake (Florida) | 953.22 mi (1,534.07 km) |
| Swansea to D'Iberville (Mississippi) | 561.65 mi (903.89 km) |
| Swansea to Dakota Ridge (Colorado) | 814.81 mi (1,311.31 km) |
| Swansea to Dale City (Virginia) | 682.03 mi (1,097.62 km) |
| Swansea to Dallas (Georgia) | 429.70 mi (691.53 km) |
