| Philadelphia to Cibolo (Texas) | 1,488.76 mi (2,395.93 km) |
| Philadelphia to Cicero (Illinois) | 670.55 mi (1,079.14 km) |
| Philadelphia to Cimarron Hills (Colorado) | 1,572.52 mi (2,530.73 km) |
| Philadelphia to Cincinnati (Ohio) | 502.47 mi (808.64 km) |
| Philadelphia to Cinco Ranch (Texas) | 1,362.56 mi (2,192.83 km) |
| Philadelphia to Circleville (Ohio) | 414.78 mi (667.52 km) |
| Philadelphia to Citrus (California) | 2,369.17 mi (3,812.81 km) |
| Philadelphia to Citrus Heights (California) | 2,439.66 mi (3,926.26 km) |
| Philadelphia to Citrus Park (Florida) | 926.96 mi (1,491.80 km) |
| Philadelphia to Claiborne (Louisiana) | 1,078.98 mi (1,736.45 km) |
| Philadelphia to Claremont (California) | 2,359.73 mi (3,797.62 km) |
| Philadelphia to Claremont (New Hampshire) | 273.97 mi (440.92 km) |
| Philadelphia to Claremore (Oklahoma) | 1,138.50 mi (1,832.24 km) |
| Philadelphia to Clarksburg (Maryland) | 125.71 mi (202.31 km) |
| Philadelphia to Clarksburg (West Virginia) | 280.50 mi (451.42 km) |
