| Sedro-Woolley to Cocentaina | 5,434.96 mi (8,746.72 km) |
| Sedro-Woolley to Coin | 5,412.77 mi (8,711.01 km) |
| Sedro-Woolley to Colindres | 5,083.06 mi (8,180.39 km) |
| Sedro-Woolley to Collado-Villalba | 5,217.86 mi (8,397.33 km) |
| Sedro-Woolley to Colmenar Viejo | 5,224.10 mi (8,407.38 km) |
| Sedro-Woolley to Colmenarejo | 5,221.58 mi (8,403.33 km) |
| Sedro-Woolley to Conil de la Frontera | 5,390.04 mi (8,674.44 km) |
| Sedro-Woolley to Consuegra | 5,295.35 mi (8,522.04 km) |
| Sedro-Woolley to Corbera de Llobregat | 5,354.23 mi (8,616.80 km) |
| Sedro-Woolley to Cordoba | 5,344.56 mi (8,601.23 km) |
| Sedro-Woolley to Coria del Rio | 5,335.44 mi (8,586.56 km) |
| Sedro-Woolley to Crevillente | 5,451.56 mi (8,773.43 km) |
| Sedro-Woolley to Cuarte de Huerva | 5,260.46 mi (8,465.89 km) |
| Sedro-Woolley to Cubellas | 5,358.53 mi (8,623.72 km) |
| Sedro-Woolley to Cuellar | 5,166.00 mi (8,313.87 km) |
