Switzerland · Canton SO

Gempen

4145

SO CANTON4145

Residents

932

Area

6 km²

Elevation

714 m a.s.l.

Tax multiplier

117%

Postal codes

1

Recent federal votes

BFS · sd-t-17-02

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 63.8%49.5% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 64.2%45.3% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 58.8%56.4% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 58.8%32.8% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

SVP28.4% · strongest party

SVP28.4%

SP19.7%

Mitte14.5%

GRÜNE13.5%

FDP12.9%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier117%

Cantonal tax multiplier104%

117%CH range 25%525%

Tax rank 38 of 104 in canton Solothurn

Source: ESTV · retrieved 20.07.2026

Climate

Basel / Binningen · 9.3 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

Websitegempen.ch ↗

Source: Wikidata · retrieved 27.07.2026

Postal codes (1)

swisstopo

Localities

swisstopo · 1

Nearby municipalities

swisstopo

Nuglar-St. Pantaleon

Frequently asked questions

What is the postal code of Gempen?: The postal code of Gempen is 4145.
What is the tax rate in Gempen?: The municipal tax multiplier of Gempen is 117% (2026); canton SO levies 104%.
How many residents does Gempen have?: Gempen has 932 residents.
How many foreign residents live in Gempen?: Gempen has 149 foreign residents, a share of 15.95% (2024).
Which party is strongest in Gempen?: In the 2023 National Council election, SVP was the strongest party in Gempen with 28.356% of the vote.

Map

OpenStreetMap