| Opelousas to Candler-McAfee (Georgia) | 507.47 mi (816.69 km) |
| Opelousas to Caño Martin Peña (Puerto Rico) | 1,831.25 mi (2,947.11 km) |
| Opelousas to Cañon City (Colorado) | 925.34 mi (1,489.20 km) |
| Opelousas to Canóvanas (Puerto Rico) | 1,841.83 mi (2,964.14 km) |
| Opelousas to Canton (Georgia) | 511.95 mi (823.91 km) |
| Opelousas to Canton (Illinois) | 702.92 mi (1,131.24 km) |
| Opelousas to Canton (Mississippi) | 187.25 mi (301.35 km) |
| Opelousas to Canton (Ohio) | 929.31 mi (1,495.57 km) |
| Opelousas to Canyon (Texas) | 649.10 mi (1,044.63 km) |
| Opelousas to Canyon Lake (California) | 1,486.07 mi (2,391.60 km) |
| Opelousas to Canyon Lake (Texas) | 371.68 mi (598.16 km) |
| Opelousas to Cape Coral (Florida) | 667.73 mi (1,074.61 km) |
| Opelousas to Cape Girardeau (Missouri) | 490.58 mi (789.51 km) |
| Opelousas to Carbondale (Illinois) | 523.35 mi (842.26 km) |
| Opelousas to Carlisle (Pennsylvania) | 1,069.63 mi (1,721.40 km) |
