Barbastro is a municipality in Spain, in the province of Huesca, in Aragon. On 1 January 2025 it had 17,807 inhabitants according to the INE municipal register (padrón), over an area of about 106.3 km².
With about 168 inhabitants per km², it combines a medium-sized town with residential districts, farmland and business areas. Of the 7 municipalities in the province of Huesca with at least 5,000 inhabitants, it is number 3 by population.
As the crow flies it lies about 47 km east of Huesca, the provincial capital. The nearest major city is Zaragoza, about 95 km away.
To explore the area, use the map of neighbouring municipalities and the accommodation options in and around Barbastro; all the municipalities in the province of Huesca are listed on their own page.