| Seal Beach to Cocentaina | 6,032.25 mi (9,707.96 km) |
| Seal Beach to Coin | 5,949.87 mi (9,575.39 km) |
| Seal Beach to Colindres | 5,702.16 mi (9,176.73 km) |
| Seal Beach to Collado-Villalba | 5,803.70 mi (9,340.15 km) |
| Seal Beach to Colmenar Viejo | 5,812.25 mi (9,353.91 km) |
| Seal Beach to Colmenarejo | 5,806.59 mi (9,344.80 km) |
| Seal Beach to Conil de la Frontera | 5,910.53 mi (9,512.09 km) |
| Seal Beach to Consuegra | 5,872.34 mi (9,450.62 km) |
| Seal Beach to Corbera de Llobregat | 5,997.42 mi (9,651.91 km) |
| Seal Beach to Cordoba | 5,894.51 mi (9,486.30 km) |
| Seal Beach to Coria del Rio | 5,867.45 mi (9,442.74 km) |
| Seal Beach to Crevillente | 6,040.66 mi (9,721.50 km) |
| Seal Beach to Cuarte de Huerva | 5,881.72 mi (9,465.71 km) |
| Seal Beach to Cubellas | 5,997.65 mi (9,652.28 km) |
| Seal Beach to Cuellar | 5,757.35 mi (9,265.56 km) |
