| Oceanside to Cullman (Alabama) | 1,746.05 mi (2,810.00 km) |
| Oceanside to Culpeper (Virginia) | 2,214.10 mi (3,563.25 km) |
| Oceanside to Culver City (California) | 82.67 mi (133.05 km) |
| Oceanside to Cumberland (Maryland) | 2,171.06 mi (3,493.98 km) |
| Oceanside to Cupertino (California) | 388.96 mi (625.98 km) |
| Oceanside to Cutler Bay (Florida) | 2,274.92 mi (3,661.13 km) |
| Oceanside to Cutlerville (Michigan) | 1,832.11 mi (2,948.50 km) |
| Oceanside to Cuyahoga Falls (Ohio) | 2,028.96 mi (3,265.29 km) |
| Oceanside to Cypress (California) | 58.69 mi (94.46 km) |
| Oceanside to Cypress Gardens (Florida) | 2,138.25 mi (3,441.19 km) |
| Oceanside to Cypress Lake (Florida) | 2,160.16 mi (3,476.44 km) |
| Oceanside to D'Iberville (Mississippi) | 1,672.93 mi (2,692.32 km) |
| Oceanside to Dakota Ridge (Colorado) | 807.12 mi (1,298.93 km) |
| Oceanside to Dale City (Virginia) | 2,248.79 mi (3,619.07 km) |
| Oceanside to Dallas (Georgia) | 1,861.86 mi (2,996.38 km) |
