Castrillon is located in Oviedo city, Spain at the 43.3979, -6.7922 coordinates. Distance from Castrillon to other cities. are listed below, click on the city name to find distance between. Distance from Castrillón to Gijon 93 km, to Aviles 72 km, to Pola de Siero 91 km. The green marker indicates the location of Castrillón.