Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 50.6%42.0% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 50.6%41.3% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 48.8%64.9% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 48.8%39.0% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023MCR19.4% · strongest party
MCR19.4%
SP18.8%
SVP16.6%
GRÜNE12.5%
FDP10.1%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier50.5%
Cantonal tax multiplier147.5%
50.5%CH range 25%525%
Tax rank 43 of 45 in canton GenevaSource: ESTV · retrieved 20.07.2026
Climate
Genève / Cointrin · 6.1 kmAnnual mean temperature 202511.9 °C
Precipitation 2025921 mm
11.9 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Head of governmentJean-Pierre Pasquier · FDP.Die Liberalen
Websiteonex.ch ↗
Source: Wikidata · retrieved 27.07.2026
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Onex?
- Onex has 2 postal codes: 1212, 1213.
- What is the tax rate in Onex?
- The municipal tax multiplier of Onex is 50.5% (2026); canton GE levies 147.5%.
- How many residents does Onex have?
- Onex has 18'886 residents.
- How many foreign residents live in Onex?
- Onex has 6'971 foreign residents, a share of 36.85% (2024).
- Which party is strongest in Onex?
- In the 2023 National Council election, MCR was the strongest party in Onex with 19.42% of the vote.