| Port Huron to Commerce (California) | 2,011.44 mi (3,237.10 km) |
| Port Huron to Commerce City (Colorado) | 1,176.89 mi (1,894.02 km) |
| Port Huron to Compton (California) | 2,018.67 mi (3,248.73 km) |
| Port Huron to Comstock Park (Michigan) | 163.68 mi (263.42 km) |
| Port Huron to Concord (California) | 2,088.21 mi (3,360.64 km) |
| Port Huron to Concord (Missouri) | 516.54 mi (831.29 km) |
| Port Huron to Concord (New Hampshire) | 548.68 mi (883.01 km) |
| Port Huron to Concord (North Carolina) | 533.10 mi (857.95 km) |
| Port Huron to Conneaut (Ohio) | 119.99 mi (193.11 km) |
| Port Huron to Connersville (Indiana) | 269.05 mi (432.99 km) |
| Port Huron to Conroe (Texas) | 1,131.91 mi (1,821.63 km) |
| Port Huron to Converse (Texas) | 1,279.59 mi (2,059.30 km) |
| Port Huron to Conway (Arkansas) | 765.92 mi (1,232.63 km) |
| Port Huron to Conway (Florida) | 1,002.74 mi (1,613.75 km) |
| Port Huron to Conway (South Carolina) | 657.70 mi (1,058.47 km) |
