Demographics
BFS · 2023Women
5'212 51.8%
Men
4'856 48.2%
Children & youth (0–19)
1'950 19.4%
Swiss citizens
8'136 80.4%
Foreign residents
1'989 19.6%
0–19 · 1'950 · 19.4%20–64 · 5'649 · 56.1%65+ · 2'469 · 24.5%
Foreign residents 19.6%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 59.7%52.2% yes
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 60.7%40.4% yes
08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 53.7%51.1% yes
08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 53.5%26.2% yes
Source: BFS · retrieved 20.07.2026
Politics
National Council election 2023SVP25.5% · strongest party
SVP25.5%
SP22.8%
FDP16.3%
Mitte15.3%
GRÜNE9.1%
Source: BFS · retrieved 20.07.2026
Taxes 2026
ESTVMunicipal tax multiplier52%
Cantonal tax multiplier100%
52%CH range 25%525%
Tax rank 8 of 86 in canton Basel-LandschaftSource: ESTV · retrieved 20.07.2026
Climate
Basel / Binningen · 5.5 kmAnnual mean temperature 202511.8 °C
Precipitation 2025930 mm
11.8 °CCH range -5.5°14°
Source: MeteoSwiss · retrieved 24.07.2026
Municipality
Wikidata · CC0Websitetherwil.ch ↗
Source: Wikidata · retrieved 20.07.2026
Postal codes (2)
swisstopoNearby municipalities
swisstopoFrequently asked questions
- What is the postal code of Therwil?
- Therwil has 2 postal codes: 4106, 4153.
- What is the tax rate in Therwil?
- The municipal tax multiplier of Therwil is 52% (2026); canton BL levies 100%.
- How many residents does Therwil have?
- Therwil has 10'068 residents (2023).
- Which canton is Therwil in?
- Therwil is located in canton BL.