| Costa Mesa to Cibolo (Texas) | 1,191.36 mi (1,917.31 km) |
| Costa Mesa to Cicero (Illinois) | 1,730.87 mi (2,785.57 km) |
| Costa Mesa to Cimarron Hills (Colorado) | 817.84 mi (1,316.18 km) |
| Costa Mesa to Cincinnati (Ohio) | 1,884.80 mi (3,033.29 km) |
| Costa Mesa to Cinco Ranch (Texas) | 1,327.43 mi (2,136.30 km) |
| Costa Mesa to Circleville (Ohio) | 1,969.34 mi (3,169.34 km) |
| Costa Mesa to Citrus (California) | 31.08 mi (50.01 km) |
| Costa Mesa to Citrus Heights (California) | 395.03 mi (635.73 km) |
| Costa Mesa to Citrus Park (Florida) | 2,121.25 mi (3,413.82 km) |
| Costa Mesa to Claiborne (Louisiana) | 1,486.60 mi (2,392.46 km) |
| Costa Mesa to Claremont (California) | 33.70 mi (54.24 km) |
| Costa Mesa to Claremont (New Hampshire) | 2,519.87 mi (4,055.33 km) |
| Costa Mesa to Claremore (Oklahoma) | 1,272.80 mi (2,048.37 km) |
| Costa Mesa to Clarksburg (Maryland) | 2,272.28 mi (3,656.88 km) |
| Costa Mesa to Clarksburg (West Virginia) | 2,108.68 mi (3,393.59 km) |
