Argüelles is an administrative neighborhood of Madrid belonging to the district of Moncloa-Aravaca. As of 1 July 2019, it had a population of 24,257 inhabitants. It is 0,755758 km² in total area. The neighborhood bears the name of Agustín Argüelles, the legal guardian of Queen Isabella II. The first streets were chiefly named after influential members of th…Argüelles is an administrative neighborhood of Madrid belonging to the district of Moncloa-Aravaca. As of 1 July 2019, it had a population of 24,257 inhabitants. It is 0,755758 km² in total area. The neighborhood bears the name of Agustín Argüelles, the legal guardian of Queen Isabella II. The first streets were chiefly named after influential members of the Royal Court. Planned in the mid 19th century, its urbanization started by 1856, on plots part of the Príncipe Pío hill.