| Sanlucar de Barrameda to Carson (California) | 5,881.29 mi (9,465.02 km) |
| Sanlucar de Barrameda to Carson City (Nevada) | 5,697.44 mi (9,169.15 km) |
| Sanlucar de Barrameda to Carteret (New Jersey) | 3,578.55 mi (5,759.12 km) |
| Sanlucar de Barrameda to Cartersville (Georgia) | 4,286.63 mi (6,898.66 km) |
| Sanlucar de Barrameda to Carthage (Missouri) | 4,657.88 mi (7,496.14 km) |
| Sanlucar de Barrameda to Cary (Illinois) | 4,210.35 mi (6,775.90 km) |
| Sanlucar de Barrameda to Cary (North Carolina) | 3,933.17 mi (6,329.83 km) |
| Sanlucar de Barrameda to Casa de Oro-Mount Helix (California) | 5,874.71 mi (9,454.43 km) |
| Sanlucar de Barrameda to Casa Grande (Arizona) | 5,636.58 mi (9,071.19 km) |
| Sanlucar de Barrameda to Casas Adobes (Arizona) | 5,626.69 mi (9,055.28 km) |
| Sanlucar de Barrameda to Cascades (Virginia) | 3,772.75 mi (6,071.65 km) |
| Sanlucar de Barrameda to Casper (Wyoming) | 4,990.16 mi (8,030.89 km) |
| Sanlucar de Barrameda to Casselberry (Florida) | 4,284.28 mi (6,894.89 km) |
| Sanlucar de Barrameda to Castaic (California) | 5,867.59 mi (9,442.98 km) |
| Sanlucar de Barrameda to Castle Pines (Colorado) | 5,058.62 mi (8,141.06 km) |
