| Povoa de Santa Iria to Carson (California) | 5,675.04 mi (9,133.09 km) |
| Povoa de Santa Iria to Carson City (Nevada) | 5,490.16 mi (8,835.57 km) |
| Povoa de Santa Iria to Carteret (New Jersey) | 3,382.61 mi (5,443.79 km) |
| Povoa de Santa Iria to Cartersville (Georgia) | 4,094.46 mi (6,589.40 km) |
| Povoa de Santa Iria to Carthage (Missouri) | 4,457.55 mi (7,173.73 km) |
| Povoa de Santa Iria to Cary (Illinois) | 4,007.81 mi (6,449.95 km) |
| Povoa de Santa Iria to Cary (North Carolina) | 3,742.20 mi (6,022.49 km) |
| Povoa de Santa Iria to Casa de Oro-Mount Helix (California) | 5,669.09 mi (9,123.52 km) |
| Povoa de Santa Iria to Casa Grande (Arizona) | 5,432.46 mi (8,742.69 km) |
| Povoa de Santa Iria to Casas Adobes (Arizona) | 5,423.13 mi (8,727.69 km) |
| Povoa de Santa Iria to Cascades (Virginia) | 3,577.67 mi (5,757.71 km) |
| Povoa de Santa Iria to Casper (Wyoming) | 4,783.48 mi (7,698.27 km) |
| Povoa de Santa Iria to Casselberry (Florida) | 4,103.32 mi (6,603.66 km) |
| Povoa de Santa Iria to Castaic (California) | 5,661.11 mi (9,110.67 km) |
| Povoa de Santa Iria to Castle Pines (Colorado) | 4,853.37 mi (7,810.74 km) |
