Peraltilla is a municipality in the province of Huesca, in the autonomous community of Aragon, Spain. It is a small, rural settlement in this part of northeastern Spain.
According to the 2004 census conducted by the Instituto Nacional de Estadística (INE), the municipality had a population of 181 inhabitants. This figure reflects the small scale of the community and its character as a sparsely populated municipality within the province of Huesca.