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Municipality · Canton of Vaud · 2'993 voters

Cossonay
Cossonay votes more left than Switzerland and clearly more liberal than Switzerland (popular votes 2022–2026). Since 1981, Cossonay has clearly moved: 3.3 pts per 10 years toward left.
Left ↔ Right · 2022–2026
Canton of Vaud: +7.9 · trend since 1981: +3.3 pts per 10 years (clear)
Per 5-year period. Solid: Cossonay; dashed: Canton of Vaud. Line “CH” = Swiss result.
Liberal ↔ Conservative · 2022–2026
Canton of Vaud: +8.4 · trend since 1981: no clear trend
Per 5-year period. Solid: Cossonay; dashed: Canton of Vaud. Line “CH” = Swiss result.
ⓘ How these scores are calculated
National Council election 2023
Party share in Cossonay; 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): FDP −6.2 pts per 10 years · Greens +2.7 pts per 10 years · SVP +1.8 pts per 10 years · SP +1.1 pts per 10 years · Mitte +0.7 pts per 10 years.
Where Cossonay differed most from Switzerland
Popular votes of the last 10 years with the biggest difference to the Swiss yes share.
| Date | Vote | Cossonay | Switzerland |
|---|---|---|---|
| 23.9.2018 | Initiative «For food sovereignty» | 60.4% yes | 31.6% yes |
| 23.9.2018 | «Fair Food Initiative» | 65.8% yes | 38.7% yes |
| 28.9.2025 | Cantonal taxation of second properties | 33.3% yes | 57.7% yes |
| 27.9.2020 | Paternity leave | 83.5% yes | 60.3% yes |
| 15.5.2022 | Transplantation Act (principle of presumed consent in organ donation) | 83.2% yes | 60.2% yes |
Municipalities that vote alike
Plan-les-Ouates (GE) Villars-sur-Glâne (FR) Cheseaux-sur-Lausanne (VD) Marly (FR) Préverenges (VD) Echallens (VD)