| Middlesex to Cordele (Georgia) | 787.17 mi (1,266.83 km) |
| Middlesex to Corinth (Mississippi) | 857.12 mi (1,379.39 km) |
| Middlesex to Corinth (Texas) | 1,344.20 mi (2,163.28 km) |
| Middlesex to Cornelius (North Carolina) | 494.56 mi (795.91 km) |
| Middlesex to Cornelius (Oregon) | 2,437.36 mi (3,922.55 km) |
| Middlesex to Corning (New York) | 171.34 mi (275.75 km) |
| Middlesex to Corona (California) | 2,390.03 mi (3,846.38 km) |
| Middlesex to Coronado (California) | 2,403.46 mi (3,868.00 km) |
| Middlesex to Corpus Christi (Texas) | 1,573.12 mi (2,531.68 km) |
| Middlesex to Corsicana (Texas) | 1,351.13 mi (2,174.43 km) |
| Middlesex to Cortland (New York) | 164.64 mi (264.96 km) |
| Middlesex to Corvallis (Oregon) | 2,460.08 mi (3,959.11 km) |
| Middlesex to Coshocton (Ohio) | 386.96 mi (622.75 km) |
| Middlesex to Costa Mesa (California) | 2,413.81 mi (3,884.65 km) |
| Middlesex to Coto de Caza (California) | 2,398.65 mi (3,860.26 km) |
