| Portchester to Cookeville (Tennessee) | 4,112.46 mi (6,618.36 km) |
| Portchester to Coolidge (Arizona) | 5,271.92 mi (8,484.33 km) |
| Portchester to Coon Rapids (Minnesota) | 3,993.17 mi (6,426.38 km) |
| Portchester to Cooper City (Florida) | 4,383.37 mi (7,054.35 km) |
| Portchester to Coos Bay (Oregon) | 5,087.35 mi (8,187.29 km) |
| Portchester to Copiague (New York) | 3,411.11 mi (5,489.65 km) |
| Portchester to Coppell (Texas) | 4,727.70 mi (7,608.50 km) |
| Portchester to Copperas Cove (Texas) | 4,858.52 mi (7,819.04 km) |
| Portchester to Coral Gables (Florida) | 4,399.81 mi (7,080.81 km) |
| Portchester to Coral Springs (Florida) | 4,371.06 mi (7,034.54 km) |
| Portchester to Coral Terrace (Florida) | 4,399.12 mi (7,079.69 km) |
| Portchester to Coralville (Iowa) | 4,091.02 mi (6,583.86 km) |
| Portchester to Coram (New York) | 3,386.22 mi (5,449.59 km) |
| Portchester to Corcoran (California) | 5,366.04 mi (8,635.80 km) |
| Portchester to Cordele (Georgia) | 4,241.17 mi (6,825.51 km) |
