Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 63.6%54.7% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 64.3%48.1% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 59.8%50.8% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 59.6%27.6% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023SVP26.9% · strongest party
SVP26.9%
Mitte19.1%
SP18.0%
FDP12.5%
GRÜNE10.7%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier110%
Cantonal tax multiplier104%
110%CH range 25%525%
Tax rank 17 of 104 in canton SolothurnSource: ESTV · retrieved 20.07.2026
Climate
Basel / Binningen · 7.1 kmAnnual mean temperature 202511.8 °C
Precipitation 2025930 mm
11.8 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websitewitterswil.ch ↗
Source: Wikidata · retrieved 27.07.2026
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Witterswil?
- Witterswil has 2 postal codes: 4108, 4112.
- What is the tax rate in Witterswil?
- The municipal tax multiplier of Witterswil is 110% (2026); canton SO levies 104%.
- How many residents does Witterswil have?
- Witterswil has 1'467 residents.
- How many foreign residents live in Witterswil?
- Witterswil has 285 foreign residents, a share of 19% (2024).
- Which party is strongest in Witterswil?
- In the 2023 National Council election, SVP was the strongest party in Witterswil with 26.938% of the vote.