| Upper Montclair to Cocentaina | 3,796.58 mi (6,110.00 km) |
| Upper Montclair to Coin | 3,653.41 mi (5,879.59 km) |
| Upper Montclair to Colindres | 3,517.60 mi (5,661.04 km) |
| Upper Montclair to Collado-Villalba | 3,568.82 mi (5,743.47 km) |
| Upper Montclair to Colmenar Viejo | 3,579.61 mi (5,760.83 km) |
| Upper Montclair to Colmenarejo | 3,570.52 mi (5,746.20 km) |
| Upper Montclair to Conil de la Frontera | 3,600.20 mi (5,793.97 km) |
| Upper Montclair to Consuegra | 3,622.66 mi (5,830.11 km) |
| Upper Montclair to Corbera de Llobregat | 3,824.06 mi (6,154.23 km) |
| Upper Montclair to Cordoba | 3,613.88 mi (5,815.98 km) |
| Upper Montclair to Coria del Rio | 3,570.14 mi (5,745.59 km) |
| Upper Montclair to Crevillente | 3,794.79 mi (6,107.12 km) |
| Upper Montclair to Cuarte de Huerva | 3,686.66 mi (5,933.11 km) |
| Upper Montclair to Cubellas | 3,818.56 mi (6,145.37 km) |
| Upper Montclair to Cuellar | 3,532.35 mi (5,684.77 km) |
