| Costa Mesa to Carrollwood (Florida) | 2,124.36 mi (3,418.83 km) |
| Costa Mesa to Carson (California) | 22.93 mi (36.91 km) |
| Costa Mesa to Carson City (Nevada) | 392.39 mi (631.50 km) |
| Costa Mesa to Carteret (New Jersey) | 2,428.07 mi (3,907.60 km) |
| Costa Mesa to Cartersville (Georgia) | 1,890.50 mi (3,042.46 km) |
| Costa Mesa to Carthage (Missouri) | 1,346.49 mi (2,166.96 km) |
| Costa Mesa to Cary (Illinois) | 1,710.39 mi (2,752.60 km) |
| Costa Mesa to Cary (North Carolina) | 2,210.20 mi (3,556.97 km) |
| Costa Mesa to Casa de Oro-Mount Helix (California) | 82.90 mi (133.41 km) |
| Costa Mesa to Casa Grande (Arizona) | 359.07 mi (577.87 km) |
| Costa Mesa to Casas Adobes (Arizona) | 410.18 mi (660.13 km) |
| Costa Mesa to Cascades (Virginia) | 2,266.48 mi (3,647.55 km) |
| Costa Mesa to Casper (Wyoming) | 891.39 mi (1,434.55 km) |
| Costa Mesa to Casselberry (Florida) | 2,179.39 mi (3,507.39 km) |
| Costa Mesa to Castaic (California) | 69.72 mi (112.20 km) |
