| Middlesex to Clarksdale (Mississippi) | 984.11 mi (1,583.77 km) |
| Middlesex to Clarkston (Georgia) | 710.29 mi (1,143.10 km) |
| Middlesex to Clarksville (Indiana) | 620.42 mi (998.47 km) |
| Middlesex to Clarksville (Tennessee) | 745.87 mi (1,200.37 km) |
| Middlesex to Clawson (Michigan) | 467.05 mi (751.64 km) |
| Middlesex to Clay (Alabama) | 817.72 mi (1,315.99 km) |
| Middlesex to Clayton (California) | 2,513.22 mi (4,044.64 km) |
| Middlesex to Clayton (Missouri) | 851.88 mi (1,370.96 km) |
| Middlesex to Clayton (North Carolina) | 401.66 mi (646.41 km) |
| Middlesex to Clayton (Ohio) | 520.51 mi (837.67 km) |
| Middlesex to Clearfield (Utah) | 1,946.41 mi (3,132.44 km) |
| Middlesex to Clearlake (California) | 2,526.48 mi (4,065.98 km) |
| Middlesex to Clearwater (Florida) | 988.71 mi (1,591.17 km) |
| Middlesex to Cleburne (Texas) | 1,388.69 mi (2,234.88 km) |
| Middlesex to Clemmons (North Carolina) | 447.36 mi (719.96 km) |
