| Costa Mesa to Cadillac (Michigan) | 1,877.38 mi (3,021.35 km) |
| Costa Mesa to Caguas (Puerto Rico) | 3,357.06 mi (5,402.67 km) |
| Costa Mesa to Cahokia (Illinois) | 1,578.15 mi (2,539.79 km) |
| Costa Mesa to Calabasas (California) | 54.17 mi (87.18 km) |
| Costa Mesa to Caldwell (Idaho) | 692.74 mi (1,114.86 km) |
| Costa Mesa to Caledonia (Wisconsin) | 1,736.65 mi (2,794.86 km) |
| Costa Mesa to Calera (Alabama) | 1,791.49 mi (2,883.12 km) |
| Costa Mesa to Calexico (California) | 155.47 mi (250.21 km) |
| Costa Mesa to Calhoun (Georgia) | 1,879.55 mi (3,024.84 km) |
| Costa Mesa to California (Maryland) | 2,318.29 mi (3,730.93 km) |
| Costa Mesa to California City (California) | 103.05 mi (165.85 km) |
| Costa Mesa to Callaway (Florida) | 1,905.80 mi (3,067.09 km) |
| Costa Mesa to Calumet City (Illinois) | 1,739.08 mi (2,798.77 km) |
| Costa Mesa to Calverton (Maryland) | 2,289.92 mi (3,685.28 km) |
| Costa Mesa to Camano (Washington) | 1,030.56 mi (1,658.52 km) |
