Switzerland · Canton BL
Oberwil
4104BL CANTON4104
Residents
11'498
Area
7.9 km²
Tax multiplier
50%
Postal codes
1
Demographics
BFS · 2023Women
6'024 52.4%
Men
5'474 47.6%
Children & youth (0–19)
2'352 20.5%
Swiss citizens
8'640 75.6%
Foreign residents
2'790 24.4%
0–19 · 2'352 · 20.5%20–64 · 6'434 · 56.0%65+ · 2'712 · 23.6%
Foreign residents 24.4%0%61.6%
Source: BFS/OFS · retrieved 24.07.2026
Recent federal votes
BFS · sd-t-17-0214.06.2026Änderung 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 2023SVP23.7% · strongest party
SVP23.7%
SP22.6%
FDP18.7%
Mitte13.6%
GRÜNE10.4%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier50%
Cantonal tax multiplier100%
50%CH range 25%525%
Tax rank 6 of 86 in canton Basel-LandschaftSource: ESTV · retrieved 20.07.2026
Climate
Basel / Binningen · 3.4 kmAnnual mean temperature 202511.8 °C
Precipitation 2025930 mm
11.8 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websiteoberwil.ch ↗
Source: Wikidata · retrieved 20.07.2026
Postal codes (1)
swisstopoNearby municipalities
swisstopoFrequently 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 (2023).
- Which canton is Oberwil in?
- Oberwil is located in canton BL.