Tolosaldea is one of the eight castles in Gipuzkoa, formed by 28 municipalities including  Aduna with a population of 320 in 2018, and Amezketa with a population of 939 in 2018.
Tolosaldea is one of the eight castles in Gipuzkoa, formed by 28 municipalities including  Aduna with a population of 320 in 2018, and Amezketa with a population of 939 in 2018.