| Port Neches to Carrollwood (Florida) | 702.95 mi (1,131.29 km) |
| Port Neches to Carson (California) | 1,447.06 mi (2,328.82 km) |
| Port Neches to Carson City (Nevada) | 1,591.85 mi (2,561.83 km) |
| Port Neches to Carteret (New Jersey) | 1,327.07 mi (2,135.71 km) |
| Port Neches to Cartersville (Georgia) | 608.25 mi (978.88 km) |
| Port Neches to Carthage (Missouri) | 496.13 mi (798.45 km) |
| Port Neches to Cary (Illinois) | 902.72 mi (1,452.79 km) |
| Port Neches to Cary (North Carolina) | 963.57 mi (1,550.72 km) |
| Port Neches to Casa de Oro-Mount Helix (California) | 1,369.02 mi (2,203.23 km) |
| Port Neches to Casa Grande (Arizona) | 1,068.22 mi (1,719.13 km) |
| Port Neches to Casas Adobes (Arizona) | 1,021.01 mi (1,643.16 km) |
| Port Neches to Cascades (Virginia) | 1,129.15 mi (1,817.19 km) |
| Port Neches to Casper (Wyoming) | 1,121.51 mi (1,804.90 km) |
| Port Neches to Casselberry (Florida) | 765.52 mi (1,231.98 km) |
| Port Neches to Castaic (California) | 1,472.07 mi (2,369.07 km) |
