| Port Neches to Cullman (Alabama) | 507.01 mi (815.95 km) |
| Port Neches to Culpeper (Virginia) | 1,081.19 mi (1,740.00 km) |
| Port Neches to Culver City (California) | 1,455.96 mi (2,343.13 km) |
| Port Neches to Cumberland (Maryland) | 1,087.82 mi (1,750.67 km) |
| Port Neches to Cupertino (California) | 1,686.71 mi (2,714.49 km) |
| Port Neches to Cutler Bay (Florida) | 885.07 mi (1,424.38 km) |
| Port Neches to Cutlerville (Michigan) | 999.55 mi (1,608.62 km) |
| Port Neches to Cuyahoga Falls (Ohio) | 1,039.50 mi (1,672.91 km) |
| Port Neches to Cypress (California) | 1,434.52 mi (2,308.64 km) |
| Port Neches to Cypress Gardens (Florida) | 753.00 mi (1,211.83 km) |
| Port Neches to Cypress Lake (Florida) | 770.13 mi (1,239.41 km) |
| Port Neches to D'Iberville (Mississippi) | 303.09 mi (487.77 km) |
| Port Neches to Dakota Ridge (Colorado) | 918.76 mi (1,478.59 km) |
| Port Neches to Dale City (Virginia) | 1,118.16 mi (1,799.50 km) |
| Port Neches to Dallas (Georgia) | 598.80 mi (963.68 km) |
