What is the postal code of Herznach-Ueken?

Herznach-Ueken has 2 postal codes: 5027, 5028.

What is the tax rate in Herznach-Ueken?

The municipal tax multiplier of Herznach-Ueken is 110% (2026); canton AG levies 103%.

How many residents does Herznach-Ueken have?

Herznach-Ueken has 2'634 residents (2023).

Which canton is Herznach-Ueken in?

Herznach-Ueken is located in canton AG.

Switzerland · Canton AG

Herznach-Ueken

5027–5028

AG CANTON5027 5028

Residents

2'634

Area

11.4 km²

Tax multiplier

110%

Postal codes

Demographics

BFS · 2023

Women

1'313 49.8%

Men

1'321 50.2%

Children & youth (0–19)

560 21.3%

Swiss citizens

2'155 80.8%

Foreign residents

512 19.2%

0–19 · 560 · 21.3%20–64 · 1'610 · 61.1%65+ · 464 · 17.6%

Foreign residents 19.2%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 68.5%54.1% yes

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»● Switzerland: rejected · turnout 69.5%55.3% yes

08.03.2026Bundesgesetz über die Individualbesteuerung● Switzerland: accepted · turnout 57.3%46.3% yes

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»● Switzerland: rejected · turnout 57.2%19.6% yes

Source: BFS · retrieved 20.07.2026

Politics

National Council election 2023

SVP42.0% · strongest party

SVP42.0%

Mitte15.4%

SP13.3%

FDP10.6%

GLP5.6%

Source: BFS · retrieved 20.07.2026

Taxes 2026

ESTV

Municipal tax multiplier110%

Cantonal tax multiplier103%

110%CH range 25%525%

Tax rank 112 of 196 in canton Aargau

Source: ESTV · retrieved 20.07.2026

Climate

Buchs / Aarau · 11.1 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

Websiteherznach-ueken.ch ↗

Source: Wikidata · retrieved 20.07.2026

Postal codes (2)

swisstopo

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Herznach-Ueken?: Herznach-Ueken has 2 postal codes: 5027, 5028.
What is the tax rate in Herznach-Ueken?: The municipal tax multiplier of Herznach-Ueken is 110% (2026); canton AG levies 103%.
How many residents does Herznach-Ueken have?: Herznach-Ueken has 2'634 residents (2023).
Which canton is Herznach-Ueken in?: Herznach-Ueken is located in canton AG.

Map

OpenStreetMap