| Middlesex to Conyers (Georgia) | 707.44 mi (1,138.52 km) |
| Middlesex to Cookeville (Tennessee) | 669.61 mi (1,077.64 km) |
| Middlesex to Coolidge (Arizona) | 2,099.77 mi (3,379.26 km) |
| Middlesex to Coon Rapids (Minnesota) | 1,001.25 mi (1,611.35 km) |
| Middlesex to Cooper City (Florida) | 1,057.25 mi (1,701.48 km) |
| Middlesex to Coos Bay (Oregon) | 2,523.81 mi (4,061.68 km) |
| Middlesex to Copiague (New York) | 58.53 mi (94.20 km) |
| Middlesex to Coppell (Texas) | 1,346.31 mi (2,166.67 km) |
| Middlesex to Copperas Cove (Texas) | 1,458.73 mi (2,347.59 km) |
| Middlesex to Coral Gables (Florida) | 1,079.67 mi (1,737.56 km) |
| Middlesex to Coral Springs (Florida) | 1,041.96 mi (1,676.88 km) |
| Middlesex to Coral Terrace (Florida) | 1,077.43 mi (1,733.96 km) |
| Middlesex to Coralville (Iowa) | 891.52 mi (1,434.76 km) |
| Middlesex to Coram (New York) | 81.11 mi (130.53 km) |
| Middlesex to Corcoran (California) | 2,435.25 mi (3,919.15 km) |
