| Costa Mesa to Carlsbad (California) | 52.19 mi (84.00 km) |
| Costa Mesa to Carlsbad (New Mexico) | 796.32 mi (1,281.55 km) |
| Costa Mesa to Carmel (Indiana) | 1,799.95 mi (2,896.74 km) |
| Costa Mesa to Carmichael (California) | 392.27 mi (631.30 km) |
| Costa Mesa to Carney (Maryland) | 2,311.19 mi (3,719.51 km) |
| Costa Mesa to Carnot-Moon (Pennsylvania) | 2,113.84 mi (3,401.89 km) |
| Costa Mesa to Carol Stream (Illinois) | 1,712.85 mi (2,756.57 km) |
| Costa Mesa to Carolina (Puerto Rico) | 3,354.64 mi (5,398.77 km) |
| Costa Mesa to Carolina Forest (South Carolina) | 2,227.69 mi (3,585.13 km) |
| Costa Mesa to Carpentersville (Illinois) | 1,707.25 mi (2,747.55 km) |
| Costa Mesa to Carpinteria (California) | 104.48 mi (168.14 km) |
| Costa Mesa to Carrboro (North Carolina) | 2,193.98 mi (3,530.87 km) |
| Costa Mesa to Carroll (Iowa) | 1,378.95 mi (2,219.21 km) |
| Costa Mesa to Carrollton (Georgia) | 1,880.71 mi (3,026.70 km) |
| Costa Mesa to Carrollton (Texas) | 1,211.94 mi (1,950.43 km) |
