| Costa Mesa to Cordele (Georgia) | 1,977.29 mi (3,182.14 km) |
| Costa Mesa to Corinth (Mississippi) | 1,674.21 mi (2,694.38 km) |
| Costa Mesa to Corinth (Texas) | 1,200.84 mi (1,932.57 km) |
| Costa Mesa to Cornelius (North Carolina) | 2,098.28 mi (3,376.86 km) |
| Costa Mesa to Cornelius (Oregon) | 862.89 mi (1,388.69 km) |
| Costa Mesa to Corning (New York) | 2,279.78 mi (3,668.96 km) |
| Costa Mesa to Corona (California) | 24.13 mi (38.83 km) |
| Costa Mesa to Coronado (California) | 81.78 mi (131.61 km) |
| Costa Mesa to Corpus Christi (Texas) | 1,284.65 mi (2,067.44 km) |
| Costa Mesa to Corsicana (Texas) | 1,247.11 mi (2,007.02 km) |
| Costa Mesa to Cortland (New York) | 2,325.25 mi (3,742.13 km) |
| Costa Mesa to Corvallis (Oregon) | 805.87 mi (1,296.93 km) |
| Costa Mesa to Coshocton (Ohio) | 2,027.74 mi (3,263.33 km) |
| Costa Mesa to Coto de Caza (California) | 19.47 mi (31.33 km) |
| Costa Mesa to Cottage Grove (Minnesota) | 1,533.86 mi (2,468.51 km) |
