| Port Huron to Cibolo (Texas) | 1,273.01 mi (2,048.71 km) |
| Port Huron to Cicero (Illinois) | 282.50 mi (454.64 km) |
| Port Huron to Cimarron Hills (Colorado) | 1,192.71 mi (1,919.49 km) |
| Port Huron to Cincinnati (Ohio) | 286.37 mi (460.86 km) |
| Port Huron to Cinco Ranch (Texas) | 1,174.44 mi (1,890.07 km) |
| Port Huron to Circleville (Ohio) | 234.65 mi (377.64 km) |
| Port Huron to Citrus (California) | 1,994.28 mi (3,209.48 km) |
| Port Huron to Citrus Heights (California) | 2,033.86 mi (3,273.19 km) |
| Port Huron to Citrus Park (Florida) | 1,030.14 mi (1,657.85 km) |
| Port Huron to Claiborne (Louisiana) | 895.80 mi (1,441.66 km) |
| Port Huron to Claremont (California) | 1,985.21 mi (3,194.89 km) |
| Port Huron to Claremont (New Hampshire) | 509.39 mi (819.79 km) |
| Port Huron to Claremore (Oklahoma) | 837.02 mi (1,347.05 km) |
| Port Huron to Clarksburg (Maryland) | 373.94 mi (601.79 km) |
| Port Huron to Clarksburg (West Virginia) | 278.06 mi (447.49 km) |
