What is the postal code of Birsfelden?

The postal code of Birsfelden is 4127.

What is the tax rate in Birsfelden?

The municipal tax multiplier of Birsfelden is 62% (2026); canton BL levies 100%.

How many residents does Birsfelden have?

Birsfelden has 10'338 residents (2023).

Which canton is Birsfelden in?

Birsfelden is located in canton BL.

Switzerland · Canton BL

Birsfelden

4127

BL CANTON4127

Residents

10'338

Area

2.5 km²

Tax multiplier

62%

Postal codes

Demographics

BFS · 2023

Women

5'246 50.7%

Men

5'092 49.3%

Children & youth (0–19)

1'684 16.3%

Swiss citizens

6'891 66.0%

Foreign residents

3'554 34.0%

0–19 · 1'684 · 16.3%20–64 · 6'181 · 59.8%65+ · 2'473 · 23.9%

Foreign residents 34.0%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 54.2%45.9% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 55.1%43.3% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 45.7%54.3% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 45.4%35.5% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

SP36.7% · strongest party

SP36.7%

SVP23.5%

GRÜNE9.4%

Mitte8.8%

FDP8.7%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier62%

Cantonal tax multiplier100%

62%CH range 25%525%

Tax rank 60 of 86 in canton Basel-Landschaft

Source: ESTV · retrieved 20.07.2026

Climate

Basel / Binningen · 3.5 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

Websitebirsfelden.ch ↗

Source: Wikidata · retrieved 20.07.2026

Postal codes (1)

swisstopo

4127

Birsfelden

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Birsfelden?: The postal code of Birsfelden is 4127.
What is the tax rate in Birsfelden?: The municipal tax multiplier of Birsfelden is 62% (2026); canton BL levies 100%.
How many residents does Birsfelden have?: Birsfelden has 10'338 residents (2023).
Which canton is Birsfelden in?: Birsfelden is located in canton BL.

Map

OpenStreetMap