Hastière is a municipality of Wallonia located in the province of Namur, Belgium. On 1 January 2006 the municipality had 5,230 inhabitants. The total area is 56.46 km2, giving a population density of 93 inhabitants per square kilometre. The municipality consists of the following districts: Agimont, Blaimont, Hastière-Lavaux (location of town hall), Hastière-par-delà, Heer, Hermeton-sur-Meuse, and Waulsort. Hastière's attractions along the river Meuse include the Romanesque Abbey Church of Saint Peter, a former Benedictine monastery (at Hastière-Lavaux), the Renaissance Castle of Freÿr surrounded by 18th-century classical gardens and facing the rocks of Freÿr (north of Waulsort), and the 17th-century buildings of another former Benedictine monastery (at Waulsort).