| Port Neches to Cibolo (Texas) | 257.40 mi (414.25 km) |
| Port Neches to Cicero (Illinois) | 889.45 mi (1,431.42 km) |
| Port Neches to Cimarron Hills (Colorado) | 866.16 mi (1,393.94 km) |
| Port Neches to Cincinnati (Ohio) | 829.33 mi (1,334.68 km) |
| Port Neches to Cinco Ranch (Texas) | 109.97 mi (176.98 km) |
| Port Neches to Circleville (Ohio) | 911.32 mi (1,466.63 km) |
| Port Neches to Citrus (California) | 1,427.60 mi (2,297.50 km) |
| Port Neches to Citrus Heights (California) | 1,664.38 mi (2,678.56 km) |
| Port Neches to Citrus Park (Florida) | 699.86 mi (1,126.32 km) |
| Port Neches to Claiborne (Louisiana) | 204.87 mi (329.71 km) |
| Port Neches to Claremont (California) | 1,417.76 mi (2,281.66 km) |
| Port Neches to Claremont (New Hampshire) | 1,505.91 mi (2,423.53 km) |
| Port Neches to Claremore (Oklahoma) | 448.35 mi (721.54 km) |
| Port Neches to Clarksburg (Maryland) | 1,140.79 mi (1,835.92 km) |
| Port Neches to Clarksburg (West Virginia) | 1,004.71 mi (1,616.92 km) |
