| Opelousas to Cordele (Georgia) | 500.76 mi (805.89 km) |
| Opelousas to Corinth (Mississippi) | 369.18 mi (594.13 km) |
| Opelousas to Corinth (Texas) | 344.03 mi (553.67 km) |
| Opelousas to Cornelius (North Carolina) | 732.86 mi (1,179.42 km) |
| Opelousas to Cornelius (Oregon) | 1,960.06 mi (3,154.41 km) |
| Opelousas to Corning (New York) | 1,156.05 mi (1,860.49 km) |
| Opelousas to Corona (California) | 1,503.80 mi (2,420.13 km) |
| Opelousas to Coronado (California) | 1,479.87 mi (2,381.63 km) |
| Opelousas to Corpus Christi (Texas) | 373.51 mi (601.10 km) |
| Opelousas to Corsicana (Texas) | 280.30 mi (451.10 km) |
| Opelousas to Cortland (New York) | 1,210.60 mi (1,948.27 km) |
| Opelousas to Corvallis (Oregon) | 1,947.87 mi (3,134.80 km) |
| Opelousas to Coshocton (Ohio) | 884.59 mi (1,423.61 km) |
| Opelousas to Costa Mesa (California) | 1,523.48 mi (2,451.80 km) |
| Opelousas to Coto de Caza (California) | 1,504.55 mi (2,421.34 km) |
