| On Top of the World Designated Place to Cocentaina | 4,584.62 mi (7,378.23 km) |
| On Top of the World Designated Place to Coin | 4,407.19 mi (7,092.69 km) |
| On Top of the World Designated Place to Colindres | 4,339.09 mi (6,983.09 km) |
| On Top of the World Designated Place to Collado-Villalba | 4,364.05 mi (7,023.27 km) |
| On Top of the World Designated Place to Colmenar Viejo | 4,375.74 mi (7,042.07 km) |
| On Top of the World Designated Place to Colmenarejo | 4,365.05 mi (7,024.86 km) |
| On Top of the World Designated Place to Conil de la Frontera | 4,345.11 mi (6,992.77 km) |
| On Top of the World Designated Place to Consuegra | 4,407.92 mi (7,093.86 km) |
| On Top of the World Designated Place to Corbera de Llobregat | 4,641.87 mi (7,470.37 km) |
| On Top of the World Designated Place to Cordoba | 4,380.02 mi (7,048.96 km) |
| On Top of the World Designated Place to Coria del Rio | 4,325.93 mi (6,961.90 km) |
| On Top of the World Designated Place to Crevillente | 4,577.12 mi (7,366.17 km) |
| On Top of the World Designated Place to Cuarte de Huerva | 4,498.52 mi (7,239.67 km) |
| On Top of the World Designated Place to Cubellas | 4,634.00 mi (7,457.70 km) |
| On Top of the World Designated Place to Cuellar | 4,333.94 mi (6,974.81 km) |
