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 (2023).

Which canton is Seewen in?

Seewen is located in canton SO.

Switzerland · Canton SO

Seewen

4204–4206

SO CANTON4204 4206

Residents

1'064

Area

16.3 km²

Tax multiplier

125%

Postal codes

Demographics

BFS · 2023

Women

544 51.1%

Men

520 48.9%

Children & youth (0–19)

175 16.4%

Swiss citizens

948 87.1%

Foreign residents

140 12.9%

0–19 · 175 · 16.4%20–64 · 645 · 60.6%65+ · 244 · 22.9%

Foreign residents 12.9%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 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 2023

SVP34.4% · strongest party

SVP34.4%

Mitte26.3%

FDP13.7%

SP8.3%

GRÜNE6.5%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier125%

Cantonal tax multiplier104%

125%CH range 25%525%

Tax rank 81 of 104 in canton Solothurn

Source: ESTV · retrieved 20.07.2026

Climate

Basel / Binningen · 13.3 km

Annual mean temperature 202511.8 °C

Precipitation 2025930 mm

11.8 °CCH range -5.5°14°

Source: MeteoSwiss · retrieved 24.07.2026

Municipality

Wikidata · CC0

Websiteseewen.ch ↗

Source: Wikidata · retrieved 20.07.2026

Postal codes (2)

swisstopo

Nearby municipalities

swisstopo

Frequently 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 (2023).
Which canton is Seewen in?: Seewen is located in canton SO.

Map

OpenStreetMap