Population of Sion, Switzerland as of July 2025. How many people live in Sion today?

Switzerland / Sion

The exact population of Sion as of July 2025 is estimated at 34,978 residents. Please note: this figure is an estimate and may slightly change as people get born and pass away, it also depends on migration to/from Sion.

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Check out more data on population in Switzerland:

Flawil
Sarnen
Val-de-Travers
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Zollikofen
Suhr
Davos

This population of Sion is provided by the local bureau of statistics.
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