Perarrúa (Spanish: [peɾaˈru.a]), in Ribagorçan and Aragonese: Perarruga[2] (locally [peɾaˈru.a]; Aragonese: Perarruga) is a municipality located in the province of Huesca, Aragon, Spain.

According to the 2004 census (INE), the municipality has a population of 123 inhabitants.

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