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 much tax do you pay in Herznach-Ueken?

A single person without children pays about 13'059 CHF income tax in Herznach-Ueken on 100'000 CHF gross income (federal, cantonal, municipal), rank 107 of 196 in canton AG. Source: ESTV (2026).

How many residents does Herznach-Ueken have?

Herznach-Ueken has 2'765 residents (2025).

How many foreign residents live in Herznach-Ueken?

Herznach-Ueken has 556 foreign residents, a share of 20.11% (2025).

Herznach-Ueken (AG): Postal Codes 5027–5028, Tax Rate & Population

Demographics

BFS · 2025

Women

1'377 49.8%

Men

1'388 50.2%

Children & youth (0–19)

543 19.6%

Swiss citizens

2'209 79.9%

Foreign residents

556 20.1%

Population density

243 pop./km²

0–19 · 543 · 19.6%20–64 · 1'726 · 62.4%65+ · 496 · 17.9%

Foreign residents 20.1%0%64.0%

STATPOP 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026 · swisstopo, retrieved 24.08.2026

Vote results for Herznach-Ueken

BFS

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)Federal● Accepted · 52.5% Yes

54.1% YesNo 45.9%

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»Federal● Rejected · 45.2% Yes

55.3% YesNo 44.7%

14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% Yes

39.4% YesNo 60.6%

14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% Yes

49.1% YesNo 50.9%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

46.3% YesNo 53.7%

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»Federal● Rejected · 29.3% Yes

19.6% YesNo 80.4%

08.03.2026Volksinitiative «200 Franken sind genug! (SRG-Initiative)»Federal● Rejected · 38.1% Yes

43.2% YesNo 56.8%

08.03.2026Bargeldinitiative und Gegenvorschlag: StichfrageFederal● Rejected · 37.4% Yes

38.5% YesNo 61.5%

08.03.2026Bundesbeschluss über die schweizerische Währung und die Bargeldversorgung (Gegenvorschlag zur Bargeldinitiative)Federal● Accepted · 73.4% Yes

73.3% YesNo 26.7%

08.03.2026Volksinitiative «Ja zu einer unabhängigen, freien Schweizer Währung mit Münzen oder Banknoten (Bargeld ist Freiheit)»Federal● Rejected · 45.6% Yes

45.4% YesNo 54.6%

All federal votes →

Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 31.08.2026

Politics

National Council election 2023

SVP42.0% · strongest party

SVP42.0%

Mitte15.4%

SP13.3%

FDP10.6%

GLP5.6%

sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 31.08.2026

Taxes 2026

ESTV

Municipal tax multiplier110%

Cantonal tax multiplier103%

110%AG range 48%127%

Tax rank 110 of 196 in canton Aargau

Tax burden

Single, 100'000 CHF gross income

13'059 CHF(13.1%)

Rank 107 of 196 in the canton · 551 of 2110 in Switzerland

Median canton 12'952 CHF · median Switzerland 15'290 CHF

Cheapest Oberwil-Lieli 9'753 CHF · most expensive Ammerswil 13'965 CHF

Income tax as % of gross income

100'000 CHF:13'059 CHF(~13.1%)

Herznach-UekenCanton range AargauSwitzerland median

Show data table

Gross income	Herznach-Ueken	Aargau	Switzerland median
40'000	5.2%	3.8–5.6%	5.4%
50'000	7.1%	5.2–7.7%	7.8%
60'000	8.7%	6.4–9.3%	10.5%
70'000	10%	7.4–10.7%	11.9%
80'000	11.1%	8.2–11.9%	13.1%
90'000	12%	8.9–12.8%	14.1%
100'000	13.1%	9.8–14%	15.3%
110'000	14%	10.5–14.9%	16.3%
120'000	14.8%	11.2–15.8%	17.2%
130'000	15.5%	11.7–16.5%	18.1%
140'000	16.2%	12.4–17.3%	19%
150'000	16.9%	13–18%	19.7%
175'000	18.5%	14.4–19.7%	21.6%
200'000	19.9%	15.5–21.1%	23.2%
225'000	21.2%	16.6–22.4%	24.6%
250'000	22.3%	17.6–23.6%	25.8%
275'000	23.2%	18.4–24.5%	26.8%
300'000	24%	19.1–25.3%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 31.08.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–202010 °C

Precipitation 1991–20201'045 mm

10 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

602 m

Mean elevation

481 m

Relief

239 m

Mean slope

9.7°

Flat share

25.2%

South-facing

16.4%

Above 2000 m

0.0%

Relief 239 m0 m3'847 m

Terrain figures cover the whole municipal territory (swisstopo swissALTIRegio) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.

swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026

Solar potential

BFE

Roof potential

23.8 GWh/yr

Roofs + façades

30.9 GWh/yr

≈ households powered

5'300

24 GWh/yr01'133 GWh/yr

BFE solar factsheet ↗

Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).

Swiss Federal Office of Energy (SFOE), retrieved 31.08.2026

Electricity

ElCom · 2026

Tariff H4

27.89 Rp./kWh

Energy

11.4 Rp./kWh

Grid usage

12.23 Rp./kWh

Levies + grid surcharge

3.06 Rp./kWh

27.89 Rp./kWh9.6443.61

Canton median 27.73 Rp./kWhSwiss median 27.7 Rp./kWh

Network operator AEW Energie AG

ElCom tariff comparison ↗

How this is measured

Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.

2026 · Federal Electricity Commission (ElCom), retrieved 28.08.2026

Housing

BFS

Vacancy rate

0.5 %

Avg. rooms

4.3

Dwellings

1'203

Built before 194620.1%

Built since 200135.8%

0.5 %0 %12 %

Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.

Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 31.08.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026

Accessibility

ARE · NPVM

Major centrePT 65 min · Car 36 min

AgglomerationPT 18 min · Car 12 min

Remoteness 86/196 in canton

National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 28.08.2026

Municipality

Wikidata · CC0

Websiteherznach-ueken.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

30

Largest municipalities2'765 #88 AG · #772 CH Families & children19.6% #126 AG · #1281 CH Age structure17.9% #147 AG · #1663 CH Women share49.8% #78 AG · #1084 CH Foreign residents20.1% #111 AG · #853 CH Population density243/km² #139 AG · #911 CH Tax burden13'059 #109 AG · #553 CH Taxes110% #110 AG Warmest municipalities10 °C #63 AG · #527 CH Sunniest municipalities40.2% #93 AG · #1778 CH Rainiest municipalities1'045 mm #147 AG · #1413 CH Voter turnout56.4% #70 AG · #889 CH Against Switzerland18% #58 AG · #704 CH Aligned with Switzerland82% #108 AG · #753 CH SVP strongholds42% #103 AG · #558 CH SP strongholds13.3% #92 AG · #1133 CH Centre strongholds15.4% #57 AG · #804 CH FDP strongholds10.6% #129 AG · #1316 CH GLP strongholds5.6% #145 AG · #1062 CH Green strongholds5.4% #111 AG · #1473 CH Largest by area11.4 km² #30 AG · #864 CH Remotest municipalities65 min #86 AG · #1176 CH Best-connected municipalities65 min #110 AG · #946 CH Highest peaks602 m #106 AG · #1536 CH Highest-lying municipalities481 m #88 AG · #1524 CH Greatest vertical range239 m #76 AG · #1181 CH Steepest municipalities9.7° #48 AG · #950 CH Solar potential24 GWh #90 AG · #884 CH Cheapest electricity27.89 Rp./kWh #122 AG · #1032 CH Most expensive electricity27.89 Rp./kWh #69 AG · #1070 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Herznach5027 Ueken5028

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 much tax do you pay in Herznach-Ueken?: A single person without children pays about 13'059 CHF income tax in Herznach-Ueken on 100'000 CHF gross income (federal, cantonal, municipal), rank 107 of 196 in canton AG. Source: ESTV (2026).
How many residents does Herznach-Ueken have?: Herznach-Ueken has 2'765 residents (2025).
How many foreign residents live in Herznach-Ueken?: Herznach-Ueken has 556 foreign residents, a share of 20.11% (2025).

Map

OpenStreetMap

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