Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 61.2%58.1% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 61.6%61.4% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 57.2%47.1% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 56.9%18.3% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023SVP34.4% · strongest party
SVP34.4%
Mitte26.3%
FDP13.7%
SP8.3%
GRÜNE6.5%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier125%
Cantonal tax multiplier104%
125%CH range 25%525%
Tax rank 81 of 104 in canton SolothurnSource: ESTV · retrieved 20.07.2026
Climate
Basel / Binningen · 13.3 kmAnnual mean temperature 202511.8 °C
Precipitation 2025930 mm
11.8 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websiteseewen.ch ↗
Source: Wikidata · retrieved 27.07.2026
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Seewen?
- Seewen has 2 postal codes: 4204, 4206.
- What is the tax rate in Seewen?
- The municipal tax multiplier of Seewen is 125% (2026); canton SO levies 104%.
- How many residents does Seewen have?
- Seewen has 1'064 residents.
- How many foreign residents live in Seewen?
- Seewen has 140 foreign residents, a share of 12.87% (2024).
- Which party is strongest in Seewen?
- In the 2023 National Council election, SVP was the strongest party in Seewen with 34.41% of the vote.