| Zumaia to Carson (California) | 5,754.68 mi (9,261.26 km) |
| Zumaia to Carson City (Nevada) | 5,532.28 mi (8,903.34 km) |
| Zumaia to Carteret (New Jersey) | 3,585.04 mi (5,769.56 km) |
| Zumaia to Cartersville (Georgia) | 4,311.58 mi (6,938.82 km) |
| Zumaia to Carthage (Missouri) | 4,618.45 mi (7,432.68 km) |
| Zumaia to Cary (Illinois) | 4,152.72 mi (6,683.15 km) |
| Zumaia to Cary (North Carolina) | 3,968.71 mi (6,387.02 km) |
| Zumaia to Casa de Oro-Mount Helix (California) | 5,761.04 mi (9,271.49 km) |
| Zumaia to Casa Grande (Arizona) | 5,547.96 mi (8,928.58 km) |
| Zumaia to Casas Adobes (Arizona) | 5,545.42 mi (8,924.49 km) |
| Zumaia to Cascades (Virginia) | 3,783.27 mi (6,088.59 km) |
| Zumaia to Casper (Wyoming) | 4,859.18 mi (7,820.09 km) |
| Zumaia to Casselberry (Florida) | 4,370.23 mi (7,033.21 km) |
| Zumaia to Castaic (California) | 5,735.27 mi (9,230.03 km) |
| Zumaia to Castle Pines (Colorado) | 4,957.46 mi (7,978.26 km) |
