| Watertown Town to Carmona | 3,403.12 mi (5,476.79 km) |
| Watertown Town to Cartagena | 3,623.66 mi (5,831.72 km) |
| Watertown Town to Cartama | 3,476.36 mi (5,594.66 km) |
| Watertown Town to Cartaya | 3,334.90 mi (5,367.00 km) |
| Watertown Town to Caspe | 3,551.99 mi (5,716.38 km) |
| Watertown Town to Cassa de la Selva | 3,665.53 mi (5,899.09 km) |
| Watertown Town to Castalla | 3,605.72 mi (5,802.85 km) |
| Watertown Town to Castellbisbal | 3,637.64 mi (5,854.21 km) |
| Watertown Town to Castelldefels | 3,643.61 mi (5,863.82 km) |
| Watertown Town to Castello de Ampurias | 3,663.03 mi (5,895.07 km) |
| Watertown Town to Castellon de la Plana | 3,591.21 mi (5,779.50 km) |
| Watertown Town to Castilleja de la Cuesta | 3,385.47 mi (5,448.38 km) |
| Watertown Town to Catarroja | 3,592.27 mi (5,781.20 km) |
| Watertown Town to Catral | 3,613.64 mi (5,815.60 km) |
| Watertown Town to Caudete | 3,587.11 mi (5,772.90 km) |
