| Port Neches to Cloverleaf (Texas) | 74.62 mi (120.09 km) |
| Port Neches to Cloverly (Maryland) | 1,149.42 mi (1,849.82 km) |
| Port Neches to Clovis (California) | 1,552.58 mi (2,498.64 km) |
| Port Neches to Clovis (New Mexico) | 621.86 mi (1,000.79 km) |
| Port Neches to Clute (Texas) | 109.25 mi (175.82 km) |
| Port Neches to Coachella (California) | 1,325.28 mi (2,132.83 km) |
| Port Neches to Coalinga (California) | 1,580.25 mi (2,543.16 km) |
| Port Neches to Coamo (Puerto Rico) | 1,917.92 mi (3,086.59 km) |
| Port Neches to Coatesville (Pennsylvania) | 1,233.53 mi (1,985.18 km) |
| Port Neches to Cockeysville (Maryland) | 1,179.10 mi (1,897.58 km) |
| Port Neches to Cocoa (Florida) | 802.12 mi (1,290.89 km) |
| Port Neches to Cocoa Beach (Florida) | 811.14 mi (1,305.41 km) |
| Port Neches to Coconut Creek (Florida) | 875.88 mi (1,409.59 km) |
| Port Neches to Coeur d'Alene (Idaho) | 1,722.92 mi (2,772.77 km) |
| Port Neches to Cohoes (New York) | 1,425.05 mi (2,293.39 km) |
