| Walnut to Carmona | 5,855.07 mi (9,422.83 km) |
| Walnut to Cartagena | 6,041.56 mi (9,722.95 km) |
| Walnut to Cartama | 5,930.95 mi (9,544.94 km) |
| Walnut to Cartaya | 5,798.54 mi (9,331.85 km) |
| Walnut to Caspe | 5,909.35 mi (9,510.18 km) |
| Walnut to Cassa de la Selva | 5,987.01 mi (9,635.16 km) |
| Walnut to Castalla | 6,007.67 mi (9,668.41 km) |
| Walnut to Castellbisbal | 5,973.89 mi (9,614.04 km) |
| Walnut to Castelldefels | 5,983.11 mi (9,628.89 km) |
| Walnut to Castello de Ampurias | 5,976.46 mi (9,618.19 km) |
| Walnut to Castellon de la Plana | 5,967.96 mi (9,604.50 km) |
| Walnut to Castilleja de la Cuesta | 5,841.10 mi (9,400.34 km) |
| Walnut to Catarroja | 5,980.60 mi (9,624.85 km) |
| Walnut to Catral | 6,022.67 mi (9,692.55 km) |
| Walnut to Caudete | 5,990.00 mi (9,639.98 km) |
