What is the postal code of Cologny?

The postal code of Cologny is 1223.

What is the tax rate in Cologny?

The municipal tax multiplier of Cologny is 25% (2026); canton GE levies 147.5%.

How many foreign residents live in Cologny?

Cologny has 2'163 foreign residents, a share of 35.89% (2024).

Which party is strongest in Cologny?

In the 2023 National Council election, FDP was the strongest party in Cologny with 40.474% of the vote.

Switzerland · Canton GE

Cologny

1223

GE CANTON1223

Residents

6'024

Area

7.4 km²

Elevation

460 m a.s.l.

Tax multiplier

25%

Postal codes

Recent federal votes

BFS · sd-t-17-02

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 60.5%59.0% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 60.5%35.1% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 55.5%68.2% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 55.5%26.0% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

FDP40.5% · strongest party

FDP40.5%

SVP19.4%

Mitte8.3%

SP8.2%

GRÜNE7.2%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier25%

Cantonal tax multiplier147.5%

25%CH range 25%525%

Tax rank 2 of 45 in canton Geneva

Source: ESTV · retrieved 20.07.2026

Climate

Genève / Cointrin · 4.9 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 governmentAlexandre Bodmer

Websitecologny.ch ↗

Source: Wikidata · retrieved 27.07.2026

Postal codes (1)

swisstopo

1223

Cologny

Localities

swisstopo · 1

Cologny1223

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Cologny?: The postal code of Cologny is 1223.
What is the tax rate in Cologny?: The municipal tax multiplier of Cologny is 25% (2026); canton GE levies 147.5%.
How many residents does Cologny have?: Cologny has 6'024 residents.
How many foreign residents live in Cologny?: Cologny has 2'163 foreign residents, a share of 35.89% (2024).
Which party is strongest in Cologny?: In the 2023 National Council election, FDP was the strongest party in Cologny with 40.474% of the vote.

Map

OpenStreetMap