| Duarte to Cocentaina | 6,007.16 mi (9,667.59 km) |
| Duarte to Coin | 5,925.81 mi (9,536.66 km) |
| Duarte to Colindres | 5,676.59 mi (9,135.58 km) |
| Duarte to Collado-Villalba | 5,778.71 mi (9,299.94 km) |
| Duarte to Colmenar Viejo | 5,787.23 mi (9,313.64 km) |
| Duarte to Colmenarejo | 5,781.62 mi (9,304.62 km) |
| Duarte to Conil de la Frontera | 5,886.75 mi (9,473.81 km) |
| Duarte to Consuegra | 5,847.54 mi (9,410.71 km) |
| Duarte to Corbera de Llobregat | 5,971.57 mi (9,610.31 km) |
| Duarte to Cordoba | 5,870.19 mi (9,447.15 km) |
| Duarte to Coria del Rio | 5,843.43 mi (9,404.10 km) |
| Duarte to Crevillente | 6,015.72 mi (9,681.36 km) |
| Duarte to Cuarte de Huerva | 5,856.18 mi (9,424.61 km) |
| Duarte to Cubellas | 5,971.86 mi (9,610.78 km) |
| Duarte to Cuellar | 5,732.26 mi (9,225.18 km) |
