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 (2023).

Which canton is Collex-Bossy in?

Collex-Bossy is located in canton GE.

Switzerland · Canton GE

Collex-Bossy

1239–1290

GE CANTON1239 1290

Residents

1'685

Area

6.9 km²

Tax multiplier

46%

Postal codes

Demographics

BFS · 2023

Women

846 50.2%

Men

839 49.8%

Children & youth (0–19)

410 24.3%

Swiss citizens

1'137 68.3%

Foreign residents

529 31.8%

0–19 · 410 · 24.3%20–64 · 1'005 · 59.6%65+ · 270 · 16.0%

Foreign residents 31.8%0%61.6%

Source: BFS/OFS · retrieved 24.07.2026

Recent federal votes

BFS · sd-t-17-02

14.06.2026Änderung 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 2023

FDP18.1% · strongest party

FDP18.1%

GRÜNE17.9%

SVP16.8%

SP12.8%

Mitte11.8%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier46%

Cantonal tax multiplier147.5%

46%CH range 25%525%

Tax rank 33 of 45 in canton Geneva

Source: ESTV · retrieved 20.07.2026

Climate

Genève / Cointrin · 4.8 km

Annual mean temperature 202511.9 °C

Precipitation 2025921 mm

11.9 °CCH range -5.5°14°

Source: MeteoSwiss · retrieved 24.07.2026

Municipality

Wikidata · CC0

Head of governmentSylvie Malherbe · FDP.Die Liberalen

Websitecollex-bossy.ch ↗

Source: Wikidata · retrieved 20.07.2026

Postal codes (2)

swisstopo

Nearby municipalities

swisstopo

Frequently 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 (2023).
Which canton is Collex-Bossy in?: Collex-Bossy is located in canton GE.

Map

OpenStreetMap