| Portchester to Carson (California) | 5,451.36 mi (8,773.11 km) |
| Portchester to Carson City (Nevada) | 5,197.84 mi (8,365.12 km) |
| Portchester to Carteret (New Jersey) | 3,449.42 mi (5,551.31 km) |
| Portchester to Cartersville (Georgia) | 4,177.73 mi (6,723.41 km) |
| Portchester to Carthage (Missouri) | 4,414.10 mi (7,103.81 km) |
| Portchester to Cary (Illinois) | 3,939.40 mi (6,339.86 km) |
| Portchester to Cary (North Carolina) | 3,853.34 mi (6,201.35 km) |
| Portchester to Casa de Oro-Mount Helix (California) | 5,469.21 mi (8,801.85 km) |
| Portchester to Casa Grande (Arizona) | 5,281.89 mi (8,500.38 km) |
| Portchester to Casas Adobes (Arizona) | 5,286.20 mi (8,507.31 km) |
| Portchester to Cascades (Virginia) | 3,646.69 mi (5,868.78 km) |
| Portchester to Casper (Wyoming) | 4,563.96 mi (7,344.98 km) |
| Portchester to Casselberry (Florida) | 4,298.37 mi (6,917.55 km) |
| Portchester to Castaic (California) | 5,427.12 mi (8,734.11 km) |
| Portchester to Castle Pines (Colorado) | 4,688.34 mi (7,545.16 km) |
