Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 56.1%55.6% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 57.5%61.2% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 50.2%45.8% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 49.9%21.6% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023SVP42.1% · strongest party
SVP42.1%
SP15.1%
FDP9.9%
EVP7.8%
Mitte7.4%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier119%
Cantonal tax multiplier103%
119%CH range 25%525%
Tax rank 169 of 196 in canton AargauSource: ESTV · retrieved 20.07.2026
Climate
Gösgen · 5.2 kmAnnual mean temperature 202510.9 °C
Precipitation 20251'008 mm
10.9 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websitekoelliken.ch ↗
Source: Wikidata · retrieved 27.07.2026
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Kölliken?
- Kölliken has 2 postal codes: 4813, 5742.
- What is the tax rate in Kölliken?
- The municipal tax multiplier of Kölliken is 119% (2026); canton AG levies 103%.
- How many residents does Kölliken have?
- Kölliken has 5'035 residents.
- How many foreign residents live in Kölliken?
- Kölliken has 1'237 foreign residents, a share of 24.23% (2024).
- Which party is strongest in Kölliken?
- In the 2023 National Council election, SVP was the strongest party in Kölliken with 42.08% of the vote.