| Middlesex to Clemson (South Carolina) | 609.80 mi (981.38 km) |
| Middlesex to Clermont (Florida) | 927.07 mi (1,491.97 km) |
| Middlesex to Cleveland (Mississippi) | 1,008.28 mi (1,622.67 km) |
| Middlesex to Cleveland (Ohio) | 379.27 mi (610.37 km) |
| Middlesex to Cleveland (Tennessee) | 676.50 mi (1,088.72 km) |
| Middlesex to Cleveland Heights (Ohio) | 373.57 mi (601.21 km) |
| Middlesex to Cliffside Park (New Jersey) | 31.87 mi (51.29 km) |
| Middlesex to Clifton (Colorado) | 1,793.81 mi (2,886.86 km) |
| Middlesex to Clifton (New Jersey) | 26.86 mi (43.22 km) |
| Middlesex to Clinton (Iowa) | 821.68 mi (1,322.37 km) |
| Middlesex to Clinton (Maryland) | 179.59 mi (289.02 km) |
| Middlesex to Clinton (Mississippi) | 1,044.97 mi (1,681.72 km) |
| Middlesex to Clinton (Utah) | 1,948.04 mi (3,135.07 km) |
| Middlesex to Clive (Iowa) | 1,005.26 mi (1,617.81 km) |
| Middlesex to Cloquet (Minnesota) | 991.67 mi (1,595.94 km) |
