| Opelousas to Carlsbad (California) | 1,486.75 mi (2,392.69 km) |
| Opelousas to Carlsbad (New Mexico) | 727.68 mi (1,171.09 km) |
| Opelousas to Carmel (Indiana) | 732.74 mi (1,179.24 km) |
| Opelousas to Carmichael (California) | 1,746.61 mi (2,810.89 km) |
| Opelousas to Carney (Maryland) | 1,071.01 mi (1,723.62 km) |
| Opelousas to Carnot-Moon (Pennsylvania) | 958.37 mi (1,542.34 km) |
| Opelousas to Carol Stream (Illinois) | 817.14 mi (1,315.06 km) |
| Opelousas to Carolina (Puerto Rico) | 1,836.16 mi (2,955.01 km) |
| Opelousas to Carolina Forest (South Carolina) | 801.57 mi (1,290.00 km) |
| Opelousas to Carpentersville (Illinois) | 828.40 mi (1,333.18 km) |
| Opelousas to Carpinteria (California) | 1,616.27 mi (2,601.13 km) |
| Opelousas to Carrboro (North Carolina) | 837.60 mi (1,347.99 km) |
| Opelousas to Carroll (Iowa) | 812.44 mi (1,307.50 km) |
| Opelousas to Carrollton (Georgia) | 460.85 mi (741.67 km) |
| Opelousas to Carrollton (Texas) | 330.26 mi (531.49 km) |
