| Healdsburg to Cehegin | 5,949.84 mi (9,575.34 km) |
| Healdsburg to Cervello | 5,909.04 mi (9,509.68 km) |
| Healdsburg to Cervera | 5,871.84 mi (9,449.81 km) |
| Healdsburg to Ceuti | 5,969.70 mi (9,607.30 km) |
| Healdsburg to Cheste | 5,918.46 mi (9,524.85 km) |
| Healdsburg to Chiclana de la Frontera | 5,869.93 mi (9,446.74 km) |
| Healdsburg to Chipiona | 5,843.32 mi (9,403.91 km) |
| Healdsburg to Chiva | 5,917.64 mi (9,523.53 km) |
| Healdsburg to Churriana de la Vega | 5,929.14 mi (9,542.02 km) |
| Healdsburg to Ciempozuelos | 5,778.78 mi (9,300.05 km) |
| Healdsburg to Cieza | 5,956.13 mi (9,585.46 km) |
| Healdsburg to Cisterniga | 5,667.53 mi (9,121.01 km) |
| Healdsburg to Ciudad de Melilla | 6,050.31 mi (9,737.04 km) |
| Healdsburg to Ciudad Real | 5,826.95 mi (9,377.57 km) |
| Healdsburg to Ciudad-Rodrigo | 5,649.97 mi (9,092.74 km) |
