| Opelousas to Clemson (South Carolina) | 610.87 mi (983.10 km) |
| Opelousas to Clermont (Florida) | 637.65 mi (1,026.20 km) |
| Opelousas to Cleveland (Mississippi) | 236.06 mi (379.90 km) |
| Opelousas to Cleveland (Ohio) | 952.66 mi (1,533.15 km) |
| Opelousas to Cleveland (Tennessee) | 527.64 mi (849.15 km) |
| Opelousas to Cleveland Heights (Ohio) | 958.44 mi (1,542.46 km) |
| Opelousas to Cliffside Park (New Jersey) | 1,235.93 mi (1,989.03 km) |
| Opelousas to Clifton (Colorado) | 1,098.52 mi (1,767.90 km) |
| Opelousas to Clifton (New Jersey) | 1,229.62 mi (1,978.88 km) |
| Opelousas to Clinton (Iowa) | 788.67 mi (1,269.24 km) |
| Opelousas to Clinton (Maryland) | 1,030.84 mi (1,658.97 km) |
| Opelousas to Clinton (Mississippi) | 162.79 mi (261.99 km) |
| Opelousas to Clinton (Utah) | 1,333.18 mi (2,145.54 km) |
| Opelousas to Clive (Iowa) | 772.13 mi (1,242.63 km) |
| Opelousas to Cloquet (Minnesota) | 1,119.31 mi (1,801.36 km) |
