Flémalle is a municipality of Wallonia within the Liège Province in Belgium. As of 2024, it has a population of 27,002, and together with the muni…Flémalle is a municipality of Wallonia within the Liège Province in Belgium. As of 2024, it has a population of 27,002, and together with the municipalities of Liège, Seraing, Herstal, Saint-Nicolas, and Ans, forms the Liège metropolitan area, with a total population of 381,340. Flémalle's geographical location, between valleys, Hesbaye, and Condroz, as well as between countryside and urban areas, offers a mix of nature, as seen in the locality of Gleixhe, and urban environments like its center or the suburb of Les Trixhes.