| Watertown Town to Cocentaina | 3,611.84 mi (5,812.69 km) |
| Watertown Town to Coin | 3,472.00 mi (5,587.64 km) |
| Watertown Town to Colindres | 3,330.67 mi (5,360.20 km) |
| Watertown Town to Collado-Villalba | 3,383.71 mi (5,445.56 km) |
| Watertown Town to Colmenar Viejo | 3,394.42 mi (5,462.79 km) |
| Watertown Town to Colmenarejo | 3,385.46 mi (5,448.37 km) |
| Watertown Town to Conil de la Frontera | 3,419.80 mi (5,503.63 km) |
| Watertown Town to Consuegra | 3,438.32 mi (5,533.44 km) |
| Watertown Town to Corbera de Llobregat | 3,637.19 mi (5,853.49 km) |
| Watertown Town to Cordoba | 3,431.30 mi (5,522.14 km) |
| Watertown Town to Coria del Rio | 3,388.65 mi (5,453.50 km) |
| Watertown Town to Crevillente | 3,610.53 mi (5,810.58 km) |
| Watertown Town to Cuarte de Huerva | 3,500.24 mi (5,633.09 km) |
| Watertown Town to Cubellas | 3,631.83 mi (5,844.86 km) |
| Watertown Town to Cuellar | 3,346.77 mi (5,386.11 km) |
