Spa is a municipality and city of Wallonia in the province of Liège, Belgium, whose name became an eponym for mineral baths with supposed curative properties. It is in a valley in the Ardennes mountains 35 km (22 mi) south-east of Liège and 45 km (28 mi) south-west of Aachen. In 2006, Spa had a population of 10,543 and an area of 39.85 km2 (15.39 sq mi), giving a population density of 265/km2 (690/sq mi).
