| Portchester to Cicero (Illinois) | 3,937.28 mi (6,336.44 km) |
| Portchester to Cimarron Hills (Colorado) | 4,713.51 mi (7,585.66 km) |
| Portchester to Cincinnati (Ohio) | 3,932.48 mi (6,328.72 km) |
| Portchester to Cinco Ranch (Texas) | 4,843.83 mi (7,795.40 km) |
| Portchester to Circleville (Ohio) | 3,848.11 mi (6,192.94 km) |
| Portchester to Citrus (California) | 5,423.53 mi (8,728.33 km) |
| Portchester to Citrus Heights (California) | 5,270.80 mi (8,482.53 km) |
| Portchester to Citrus Park (Florida) | 4,380.30 mi (7,049.40 km) |
| Portchester to Claiborne (Louisiana) | 4,558.83 mi (7,336.73 km) |
| Portchester to Claremont (California) | 5,417.25 mi (8,718.21 km) |
| Portchester to Claremont (New Hampshire) | 3,256.32 mi (5,240.53 km) |
| Portchester to Claremore (Oklahoma) | 4,505.19 mi (7,250.40 km) |
| Portchester to Clarksburg (Maryland) | 3,633.83 mi (5,848.09 km) |
| Portchester to Clarksburg (West Virginia) | 3,756.65 mi (6,045.74 km) |
| Portchester to Clarksdale (Mississippi) | 4,411.32 mi (7,099.33 km) |
