Switzerland · Canton BL

Oberwil

4104

BL CANTON4104

Residents

11'498

Area

7.9 km²

Elevation

305 m a.s.l.

Tax multiplier

50%

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 60.5%54.5% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 61.6%36.6% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 56.9%55.6% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 56.6%27.1% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

SVP23.7% · strongest party

SVP23.7%

SP22.6%

FDP18.7%

Mitte13.6%

GRÜNE10.4%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier50%

Cantonal tax multiplier100%

50%CH range 25%525%

Tax rank 6 of 86 in canton Basel-Landschaft

Source: ESTV · retrieved 20.07.2026

Climate

Basel / Binningen · 3.4 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

Websiteoberwil.ch ↗

Source: Wikidata · retrieved 27.07.2026

Postal codes (1)

swisstopo

Localities

swisstopo · 1

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Oberwil?: The postal code of Oberwil is 4104.
What is the tax rate in Oberwil?: The municipal tax multiplier of Oberwil is 50% (2026); canton BL levies 100%.
How many residents does Oberwil have?: Oberwil has 11'498 residents.
How many foreign residents live in Oberwil?: Oberwil has 2'790 foreign residents, a share of 24.41% (2024).
Which party is strongest in Oberwil?: In the 2023 National Council election, SVP was the strongest party in Oberwil with 23.678% of the vote.

Map

OpenStreetMap