| Port Neches to Castle Pines (Colorado) | 901.10 mi (1,450.18 km) |
| Port Neches to Castle Rock (Colorado) | 896.35 mi (1,442.54 km) |
| Port Neches to Castro Valley (California) | 1,692.08 mi (2,723.14 km) |
| Port Neches to Catalina Foothills (Arizona) | 1,013.38 mi (1,630.88 km) |
| Port Neches to Cataño (Puerto Rico) | 1,917.84 mi (3,086.47 km) |
| Port Neches to Cathedral City (California) | 1,344.56 mi (2,163.86 km) |
| Port Neches to Catonsville (Maryland) | 1,166.72 mi (1,877.65 km) |
| Port Neches to Cave Spring (Virginia) | 944.10 mi (1,519.38 km) |
| Port Neches to Cayce (South Carolina) | 803.82 mi (1,293.62 km) |
| Port Neches to Cayey (Puerto Rico) | 1,927.94 mi (3,102.72 km) |
| Port Neches to Cedar City (Utah) | 1,218.11 mi (1,960.35 km) |
| Port Neches to Cedar Falls (Iowa) | 870.58 mi (1,401.06 km) |
| Port Neches to Cedar Hill (Texas) | 253.04 mi (407.23 km) |
| Port Neches to Cedar Lake (Indiana) | 867.11 mi (1,395.48 km) |
| Port Neches to Cedar Mill (Oregon) | 1,891.37 mi (3,043.87 km) |
