Sion is the capital of the canton of Valais and, as of December 2020, had a population of approximately 34,978 inhabitants (source: Wikipedia / Swiss Federal Statistics). As the administrative, economic, and cultural hub of the canton, it attracts civil servants, healthcare professionals, students, and international workers, creating steady demand for long-term rentals.
The rental market in Sion is moderately competitive. Listings on major Swiss platforms such as ImmoScout24 and Homegate typically show between 60 and 150 apartments available for rent at any given time across the city and its surrounding districts. Demand is particularly strong for well-located 2.5- and 3.5-room apartments close to the SBB/CFF train station and the city centre.
Key drivers of rental demand include the presence of the Hôpital du Valais (Valais Hospital), the EPFL Energypolis campus in Sion, the HES-SO Valais university of applied sciences, and the HEMU University of Music. These institutions attract students, researchers, and healthcare workers who require long-term accommodation.
Sion is also known as one of the sunniest cities in Switzerland, which, combined with its proximity to major ski resorts and the Rhône valley landscape, makes it attractive to professionals relocating from other Swiss cantons or from abroad.