All places › Canton of Valais › Sion
Municipality · Canton of Valais · 22'235 voters
Sion
Sion votes slightly more left than Switzerland and slightly more liberal than Switzerland (popular votes 2022–2026). Since 1981, Sion has clearly moved: 3.2 pts per 10 years toward left.
Left ↔ Right · 2022–2026
Canton of Valais: −0.4 · trend since 1981: +3.2 pts per 10 years (clear)
Per 5-year period. Solid: Sion; dashed: Canton of Valais. Line “CH” = Swiss result.
Liberal ↔ Conservative · 2022–2026
Canton of Valais: −2.6 · trend since 1981: no clear trend
Per 5-year period. Solid: Sion; dashed: Canton of Valais. Line “CH” = Swiss result.
ⓘ How these scores are calculated
National Council election 2023
Party share in Sion; the thin line shows Switzerland. Right: change since 2019.
Parties since 1971
Party share in every National Council election (every 4 years). How the election figures are made
Clear trends (p < 0.05): Mitte −6.8 pts per 10 years · Greens +4.1 pts per 10 years.
Where Sion differed most from Switzerland
Popular votes of the last 10 years with the biggest difference to the Swiss yes share.
| Date | Vote | Sion | Switzerland |
|---|---|---|---|
| 28.9.2025 | Cantonal taxation of second properties | 33.0% yes | 57.7% yes |
| 15.5.2022 | Transplantation Act (principle of presumed consent in organ donation) | 75.2% yes | 60.2% yes |
| 13.6.2021 | Initiative «For clean drinking water and healthy food» | 24.7% yes | 39.3% yes |
| 27.9.2020 | Increase of tax deductions for children | 51.0% yes | 36.8% yes |
| 3.3.2024 | Initiative for a 13th monthly pension in old-age insurance | 71.0% yes | 58.2% yes |
Municipalities that vote alike
Jorat-Menthue (VD) Marsens (FR) Romont (FR) (FR) Froideville (VD) Trogen (AR) Gimel (VD)