| Opelousas to Cullman (Alabama) | 396.45 mi (638.02 km) |
| Opelousas to Culpeper (Virginia) | 969.94 mi (1,560.96 km) |
| Opelousas to Culver City (California) | 1,551.76 mi (2,497.32 km) |
| Opelousas to Cumberland (Maryland) | 980.39 mi (1,577.79 km) |
| Opelousas to Cupertino (California) | 1,772.66 mi (2,852.82 km) |
| Opelousas to Cutler Bay (Florida) | 793.04 mi (1,276.28 km) |
| Opelousas to Cutlerville (Michigan) | 921.28 mi (1,482.65 km) |
| Opelousas to Cuyahoga Falls (Ohio) | 941.95 mi (1,515.93 km) |
| Opelousas to Cypress (California) | 1,530.89 mi (2,463.73 km) |
| Opelousas to Cypress Gardens (Florida) | 650.09 mi (1,046.22 km) |
| Opelousas to Cypress Lake (Florida) | 676.25 mi (1,088.32 km) |
| Opelousas to D'Iberville (Mississippi) | 189.38 mi (304.78 km) |
| Opelousas to Dakota Ridge (Colorado) | 967.46 mi (1,556.98 km) |
| Opelousas to Dale City (Virginia) | 1,006.68 mi (1,620.09 km) |
| Opelousas to Dallas (Georgia) | 483.51 mi (778.13 km) |
