What is the postal code of Biberstein?

The postal code of Biberstein is 5023.

What is the tax rate in Biberstein?

The municipal tax multiplier of Biberstein is 99% (2026); canton AG levies 103%.

How many residents does Biberstein have?

Biberstein has 1'644 residents.

How many foreign residents live in Biberstein?

Biberstein has 190 foreign residents, a share of 11.47% (2024).

Which party is strongest in Biberstein?

In the 2023 National Council election, SVP was the strongest party in Biberstein with 28.327% of the vote.

Switzerland · Canton AG

Biberstein

5023

AG CANTON5023

Residents

1'644

Area

4.1 km²

Elevation

448 m a.s.l.

Tax multiplier

99%

Postal codes

Recent federal votes

BFS · sd-t-17-02

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)● Switzerland: accepted · turnout 72.8%57.8% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 73.3%43.7% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 68.4%49.1% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 68.1%28.2% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

SVP28.3% · strongest party

SVP28.3%

SP19.7%

FDP17.4%

GLP9.9%

GRÜNE8.4%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier99%

Cantonal tax multiplier103%

99%CH range 25%525%

Tax rank 52 of 196 in canton Aargau

Source: ESTV · retrieved 20.07.2026

Climate

Buchs / Aarau · 3.8 km

Annual mean temperature 202510.9 °C

Precipitation 20251'065 mm

10.9 °CCH range -5.5°14°

Source: MeteoSwiss · retrieved 24.07.2026

Municipality

Wikidata · CC0

Websitebiberstein-ag.ch ↗

Source: Wikidata · retrieved 27.07.2026

Postal codes (1)

swisstopo

5023

Biberstein

Localities

swisstopo · 1

Biberstein5023

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Biberstein?: The postal code of Biberstein is 5023.
What is the tax rate in Biberstein?: The municipal tax multiplier of Biberstein is 99% (2026); canton AG levies 103%.
How many residents does Biberstein have?: Biberstein has 1'644 residents.
How many foreign residents live in Biberstein?: Biberstein has 190 foreign residents, a share of 11.47% (2024).
Which party is strongest in Biberstein?: In the 2023 National Council election, SVP was the strongest party in Biberstein with 28.327% of the vote.

Map

OpenStreetMap