| Philadelphia to Conyers (Georgia) | 656.84 mi (1,057.09 km) |
| Philadelphia to Cookeville (Tennessee) | 623.67 mi (1,003.71 km) |
| Philadelphia to Coolidge (Arizona) | 2,064.86 mi (3,323.07 km) |
| Philadelphia to Coon Rapids (Minnesota) | 988.37 mi (1,590.63 km) |
| Philadelphia to Cooper City (Florida) | 1,009.25 mi (1,624.23 km) |
| Philadelphia to Coos Bay (Oregon) | 2,507.18 mi (4,034.92 km) |
| Philadelphia to Copiague (New York) | 102.53 mi (165.00 km) |
| Philadelphia to Coppell (Texas) | 1,303.74 mi (2,098.17 km) |
| Philadelphia to Copperas Cove (Texas) | 1,414.49 mi (2,276.40 km) |
| Philadelphia to Coral Gables (Florida) | 1,031.80 mi (1,660.52 km) |
| Philadelphia to Coral Springs (Florida) | 993.91 mi (1,599.55 km) |
| Philadelphia to Coral Terrace (Florida) | 1,029.51 mi (1,656.84 km) |
| Philadelphia to Coralville (Iowa) | 866.91 mi (1,395.15 km) |
| Philadelphia to Coram (New York) | 127.13 mi (204.59 km) |
| Philadelphia to Corcoran (California) | 2,407.53 mi (3,874.55 km) |
