Sion, Switzerland Sion, Switzerland Sion (; ; ; ) is a Swiss town, a municipality, and the capital of the canton of Valais and of the district of Sion. it had a population of (known as "Sédunois(e)"). On 17 January 1968, the former municipality of Bramois merged into the municipality of Sion. On 1 January 2013, the former municipality of Salins merged into the municipality of Sion, and on 1 January 2017, Les Agettes did the same. Landmarks in Sion include the Basilique de Valère and Château de Tourbillon. Sion has an airfield for civilian and military use, where it serves as
Sion, Switzerland the "Bibliothèque municipale de Sion", the "HES-SO Valais Médiathèque santé-social" and the "HES-SO Valais, Domaine Sciences de l'ingénieur". There was a combined total () of 690,513 books or other media in the libraries, and in the same year a total of 294,320 items were loaned out. Sion has two high schools (colleges) Sion is also host to the : The HES-SO Valais offers education in Sciences, Engineering, Economics, Information Technology and Health Sciences. Sion is situated on the main railway line and the motorway, and also has an airport (Sion Airport). From the , 21,220 or 78.1% were Roman Catholic,