| Port Huron to Clarksdale (Mississippi) | 748.55 mi (1,204.68 km) |
| Port Huron to Clarkston (Georgia) | 641.03 mi (1,031.64 km) |
| Port Huron to Clarksville (Indiana) | 366.14 mi (589.24 km) |
| Port Huron to Clarksville (Tennessee) | 513.68 mi (826.69 km) |
| Port Huron to Clawson (Michigan) | 47.44 mi (76.34 km) |
| Port Huron to Clay (Alabama) | 680.06 mi (1,094.45 km) |
| Port Huron to Clayton (California) | 2,085.43 mi (3,356.18 km) |
| Port Huron to Clayton (Missouri) | 509.65 mi (820.20 km) |
| Port Huron to Clayton (North Carolina) | 548.89 mi (883.35 km) |
| Port Huron to Clayton (Ohio) | 236.33 mi (380.34 km) |
| Port Huron to Clearfield (Utah) | 1,515.74 mi (2,439.34 km) |
| Port Huron to Clearlake (California) | 2,095.02 mi (3,371.61 km) |
| Port Huron to Clearwater (Florida) | 1,036.77 mi (1,668.52 km) |
| Port Huron to Cleburne (Texas) | 1,096.82 mi (1,765.17 km) |
| Port Huron to Clemmons (North Carolina) | 492.48 mi (792.56 km) |
