| Gateway to Cibolo (Texas) | 1,023.90 mi (1,647.81 km) |
| Gateway to Cicero (Illinois) | 1,108.53 mi (1,784.01 km) |
| Gateway to Cimarron Hills (Colorado) | 1,574.21 mi (2,533.44 km) |
| Gateway to Cincinnati (Ohio) | 882.49 mi (1,420.23 km) |
| Gateway to Cinco Ranch (Texas) | 880.62 mi (1,417.21 km) |
| Gateway to Circleville (Ohio) | 902.68 mi (1,452.72 km) |
| Gateway to Citrus (California) | 2,204.94 mi (3,548.51 km) |
| Gateway to Citrus Heights (California) | 2,426.32 mi (3,904.78 km) |
| Gateway to Citrus Park (Florida) | 114.78 mi (184.71 km) |
| Gateway to Claiborne (Louisiana) | 750.50 mi (1,207.81 km) |
| Gateway to Claremont (California) | 2,195.07 mi (3,532.62 km) |
| Gateway to Claremont (New Hampshire) | 1,275.05 mi (2,051.99 km) |
| Gateway to Claremore (Oklahoma) | 1,056.44 mi (1,700.18 km) |
| Gateway to Clarksburg (Maryland) | 911.17 mi (1,466.39 km) |
| Gateway to Clarksburg (West Virginia) | 881.79 mi (1,419.10 km) |
