| Middlesex to Carlsbad (California) | 2,396.37 mi (3,856.58 km) |
| Middlesex to Carlsbad (New Mexico) | 1,735.96 mi (2,793.75 km) |
| Middlesex to Carmel (Indiana) | 614.90 mi (989.58 km) |
| Middlesex to Carmichael (California) | 2,466.78 mi (3,969.90 km) |
| Middlesex to Carney (Maryland) | 134.12 mi (215.85 km) |
| Middlesex to Carnot-Moon (Pennsylvania) | 300.11 mi (482.99 km) |
| Middlesex to Carol Stream (Illinois) | 713.34 mi (1,148.02 km) |
| Middlesex to Carolina (Puerto Rico) | 1,613.16 mi (2,596.13 km) |
| Middlesex to Carolina Forest (South Carolina) | 529.29 mi (851.82 km) |
| Middlesex to Carpentersville (Illinois) | 722.33 mi (1,162.48 km) |
| Middlesex to Carpinteria (California) | 2,477.10 mi (3,986.51 km) |
| Middlesex to Carrboro (North Carolina) | 406.18 mi (653.69 km) |
| Middlesex to Carroll (Iowa) | 1,059.17 mi (1,704.57 km) |
| Middlesex to Carrollton (Georgia) | 756.46 mi (1,217.40 km) |
| Middlesex to Carrollton (Texas) | 1,340.89 mi (2,157.95 km) |
