Demographics
BFS · 2023Women
18'832 51.4%
Men
17'792 48.6%
Children & youth (0–19)
6'921 18.9%
Swiss citizens
25'861 69.6%
Foreign residents
11'293 30.4%
0–19 · 6'921 · 18.9%20–64 · 22'299 · 60.9%65+ · 7'404 · 20.2%
Foreign residents 30.4%0%61.6%
Source: BFS/OFS · retrieved 24.07.2026
Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 53.9%51.8% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 54.2%36.4% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 49.8%56.2% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 49.4%30.6% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023Mitte25.6% · strongest party
Mitte25.6%
SVP20.9%
SP20.6%
GRÜNE15.3%
FDP13.6%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier110%
Cantonal tax multiplier100%
110%CH range 25%525%
Tax rank 21 of 122 in canton ValaisSource: ESTV · retrieved 20.07.2026
Climate
Sion · 2.4 kmAnnual mean temperature 202511.7 °C
Precipitation 2025583 mm
11.7 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Head of governmentPhilippe Varone · FDP.Die Liberalen
Websitesion.ch ↗
Source: Wikidata · retrieved 20.07.2026
Postal codes (9)
swisstopoNearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Sion?
- Sion has 9 postal codes: 1950, 1958, 1962, 1967, 1971, 1991, 1992, 1993, 1994.
- What is the tax rate in Sion?
- The municipal tax multiplier of Sion is 110% (2026); canton VS levies 100%.
- How many residents does Sion have?
- Sion has 36'624 residents (2023).
- Which canton is Sion in?
- Sion is located in canton VS.