Los Llanos de Aridane is a municipality located in the Province of Santa Cruz de Tenerife within the Canary Islands of Spain. It is situated in the western portion of the island of La Palma, specifically positioned within the Aridane Valley.
As of 2013, the municipality had a population of 20,930 residents. Due to this population size, it is recognized as the most populous municipality on the island of La Palma.