| Port Huron to Cordele (Georgia) | 765.27 mi (1,231.58 km) |
| Port Huron to Corinth (Mississippi) | 643.55 mi (1,035.70 km) |
| Port Huron to Corinth (Texas) | 1,043.90 mi (1,679.99 km) |
| Port Huron to Cornelius (North Carolina) | 525.50 mi (845.70 km) |
| Port Huron to Cornelius (Oregon) | 1,996.07 mi (3,212.36 km) |
| Port Huron to Corning (New York) | 279.87 mi (450.41 km) |
| Port Huron to Corona (California) | 1,986.43 mi (3,196.85 km) |
| Port Huron to Coronado (California) | 2,007.42 mi (3,230.63 km) |
| Port Huron to Corpus Christi (Texas) | 1,344.58 mi (2,163.89 km) |
| Port Huron to Corsicana (Texas) | 1,073.25 mi (1,727.22 km) |
| Port Huron to Cortland (New York) | 318.44 mi (512.48 km) |
| Port Huron to Corvallis (Oregon) | 2,019.02 mi (3,249.30 km) |
| Port Huron to Coshocton (Ohio) | 190.41 mi (306.44 km) |
| Port Huron to Costa Mesa (California) | 2,010.47 mi (3,235.54 km) |
| Port Huron to Coto de Caza (California) | 1,996.43 mi (3,212.94 km) |
