| Middlesex to Carrollwood (Florida) | 977.21 mi (1,572.67 km) |
| Middlesex to Carson (California) | 2,426.92 mi (3,905.76 km) |
| Middlesex to Carson City (Nevada) | 2,374.99 mi (3,822.17 km) |
| Middlesex to Carteret (New Jersey) | 14.33 mi (23.06 km) |
| Middlesex to Cartersville (Georgia) | 717.49 mi (1,154.68 km) |
| Middlesex to Carthage (Missouri) | 1,089.80 mi (1,753.87 km) |
| Middlesex to Cary (Illinois) | 720.73 mi (1,159.90 km) |
| Middlesex to Cary (North Carolina) | 405.66 mi (652.84 km) |
| Middlesex to Casa de Oro-Mount Helix (California) | 2,390.46 mi (3,847.08 km) |
| Middlesex to Casa Grande (Arizona) | 2,113.07 mi (3,400.65 km) |
| Middlesex to Casas Adobes (Arizona) | 2,090.69 mi (3,364.63 km) |
| Middlesex to Cascades (Virginia) | 186.03 mi (299.39 km) |
| Middlesex to Casper (Wyoming) | 1,638.95 mi (2,637.64 km) |
| Middlesex to Casselberry (Florida) | 909.08 mi (1,463.02 km) |
| Middlesex to Castaic (California) | 2,428.71 mi (3,908.64 km) |
