Casasola is a municipality located in the province of Ávila, Castile and León, Spain. According to the 2006 census, the municipality had a po…Casasola is a municipality located in the province of Ávila, Castile and León, Spain. According to the 2006 census, the municipality had a population of 124 inhabitants. It has a surface area of 18.36 km², a population of 124, and a population density of 6.75 people per km².