| Port Huron to Conyers (Georgia) | 649.26 mi (1,044.88 km) |
| Port Huron to Cookeville (Tennessee) | 499.63 mi (804.07 km) |
| Port Huron to Coolidge (Arizona) | 1,718.61 mi (2,765.84 km) |
| Port Huron to Coon Rapids (Minnesota) | 559.95 mi (901.15 km) |
| Port Huron to Cooper City (Florida) | 1,176.44 mi (1,893.29 km) |
| Port Huron to Coos Bay (Oregon) | 2,083.46 mi (3,353.01 km) |
| Port Huron to Copiague (New York) | 492.09 mi (791.94 km) |
| Port Huron to Coppell (Texas) | 1,049.51 mi (1,689.02 km) |
| Port Huron to Copperas Cove (Texas) | 1,179.56 mi (1,898.32 km) |
| Port Huron to Coral Gables (Florida) | 1,200.09 mi (1,931.36 km) |
| Port Huron to Coral Springs (Florida) | 1,161.20 mi (1,868.77 km) |
| Port Huron to Coral Terrace (Florida) | 1,196.96 mi (1,926.32 km) |
| Port Huron to Coralville (Iowa) | 475.77 mi (765.68 km) |
| Port Huron to Coram (New York) | 505.80 mi (814.01 km) |
| Port Huron to Corcoran (California) | 2,017.30 mi (3,246.53 km) |
