Arenas de San Pedro is a municipality in Spain, in the province of Ávila, in Castile and León. On 1 January 2025 it had 6,460 inhabitants according to the INE municipal register (padrón), over an area of about 193.3 km².
Population density is about 33 per km²: a partly rural municipality, with a main town and scattered villages or developments. Of the 6 municipalities in the province of Ávila with at least 5,000 inhabitants, it is number 3 by population.
As the crow flies it lies about 67 km south-west of Ávila, the provincial capital. The nearest major city is Madrid, about 120 km away.
To explore the area, use the map of neighbouring municipalities and the accommodation options in and around Arenas de San Pedro; all the municipalities in the province of Ávila are listed on their own page.