Oceño tana ɗaya daga cikin majami'u guda takwas (ƙungiyoyin gudanarwa) a cikin Peñamellera Alta, kuma ta kasance wata karamar hukuma ce a cikin lardin da kuma autan yankin Asturias, a arewacin Spain. Tana cikin Picos de Europa National Park. Yawan jama'a 47 ( INE 2016).