| Portchester to Castle Rock (Colorado) | 4,692.20 mi (7,551.37 km) |
| Portchester to Castro Valley (California) | 5,350.80 mi (8,611.28 km) |
| Portchester to Catalina Foothills (Arizona) | 5,283.71 mi (8,503.31 km) |
| Portchester to Cataño (Puerto Rico) | 4,153.92 mi (6,685.08 km) |
| Portchester to Cathedral City (California) | 5,391.99 mi (8,677.56 km) |
| Portchester to Catonsville (Maryland) | 3,610.43 mi (5,810.43 km) |
| Portchester to Cave Spring (Virginia) | 3,836.65 mi (6,174.49 km) |
| Portchester to Cayce (South Carolina) | 4,031.95 mi (6,488.79 km) |
| Portchester to Cayey (Puerto Rico) | 4,171.49 mi (6,713.37 km) |
| Portchester to Cedar City (Utah) | 5,066.04 mi (8,153.01 km) |
| Portchester to Cedar Falls (Iowa) | 4,084.89 mi (6,574.00 km) |
| Portchester to Cedar Hill (Texas) | 4,746.00 mi (7,637.95 km) |
| Portchester to Cedar Lake (Indiana) | 3,946.51 mi (6,351.29 km) |
| Portchester to Cedar Mill (Oregon) | 4,924.32 mi (7,924.93 km) |
| Portchester to Cedar Park (Texas) | 4,886.21 mi (7,863.59 km) |
