Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 64.5%46.6% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 64.5%33.5% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 63.6%67.7% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 63.6%34.1% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023FDP18.1% · strongest party
FDP18.1%
GRÜNE17.9%
SVP16.8%
SP12.8%
Mitte11.8%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier46%
Cantonal tax multiplier147.5%
46%CH range 25%525%
Tax rank 33 of 45 in canton GenevaSource: ESTV · retrieved 20.07.2026
Climate
Genève / Cointrin · 4.8 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 governmentSylvie Malherbe · FDP.Die Liberalen
Websitecollex-bossy.ch ↗
Source: Wikidata · retrieved 27.07.2026
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Collex-Bossy?
- Collex-Bossy has 2 postal codes: 1239, 1290.
- What is the tax rate in Collex-Bossy?
- The municipal tax multiplier of Collex-Bossy is 46% (2026); canton GE levies 147.5%.
- How many residents does Collex-Bossy have?
- Collex-Bossy has 1'685 residents.
- How many foreign residents live in Collex-Bossy?
- Collex-Bossy has 529 foreign residents, a share of 31.75% (2024).
- Which party is strongest in Collex-Bossy?
- In the 2023 National Council election, FDP was the strongest party in Collex-Bossy with 18.087% of the vote.