What is the postal code of Aarburg?

Aarburg has 3 postal codes: 4600, 4663, 4665.

What is the tax rate in Aarburg?

The municipal tax multiplier of Aarburg is 116% (2026); canton AG levies 103%.

How much tax do you pay in Aarburg?

A single person without children pays about 13'379 CHF income tax in Aarburg on 100'000 CHF gross income (federal, cantonal, municipal), rank 148 of 196 in canton AG. Source: ESTV (2026).

How many residents does Aarburg have?

Aarburg has 9'040 residents (2025).

How many foreign residents live in Aarburg?

Aarburg has 4'144 foreign residents, a share of 45.84% (2025).

Switzerland · Canton AG

Aarburg

4600–4665

AG CANTON4600 4663 4665

Residents

9'040

Area

4.4 km²

Population density

2'050 pop./km²

Elevation

459 m a.s.l.

Tax multiplier

116%

Postal codes

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN

Demographics

BFS · 2025

Women

4'413 48.8%

Men

4'627 51.2%

Children & youth (0–19)

1'835 20.3%

Swiss citizens

4'896 54.2%

Foreign residents

4'144 45.8%

Population density

2'050 pop./km²

0–19 · 1'835 · 20.3%20–64 · 5'833 · 64.5%65+ · 1'372 · 15.2%

Foreign residents 45.8%0%64.0%

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

Vote results for Aarburg

BFS

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

52.6% YesNo 47.4%

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

51.2% YesNo 48.8%

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

47.5% YesNo 52.5%

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

51.1% YesNo 48.9%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

51.9% YesNo 48.1%

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

26.2% YesNo 73.8%

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

44.9% YesNo 55.1%

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

40.7% YesNo 59.4%

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

72.1% YesNo 27.9%

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

46.3% YesNo 53.7%

All federal votes →

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

Politics

National Council election 2023

SVP34.7% · strongest party

SVP34.7%

SP24.7%

FDP10.2%

Mitte8.3%

GLP7.4%

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

Taxes 2026

ESTV

Municipal tax multiplier116%

Cantonal tax multiplier103%

116%AG range 48%127%

Tax rank 149 of 196 in canton Aargau

Tax burden

Single, 100'000 CHF gross income

13'379 CHF(13.4%)

Rank 148 of 196 in the canton · 654 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:13'379 CHF(~13.4%)

AarburgCanton range AargauSwitzerland median

Show data table

Gross income	Aarburg	Aargau	Switzerland median
40'000	5.4%	3.8–5.6%	5.4%
50'000	7.3%	5.2–7.7%	7.8%
60'000	8.9%	6.4–9.3%	10.5%
70'000	10.3%	7.4–10.7%	11.9%
80'000	11.4%	8.2–11.9%	13.1%
90'000	12.3%	8.9–12.8%	14.1%
100'000	13.4%	9.8–14%	15.3%
110'000	14.3%	10.5–14.9%	16.3%
120'000	15.1%	11.2–15.8%	17.2%
130'000	15.8%	11.7–16.5%	18.1%
140'000	16.6%	12.4–17.3%	19%
150'000	17.3%	13–18%	19.7%
175'000	19%	14.4–19.7%	21.6%
200'000	20.3%	15.5–21.1%	23.2%
225'000	21.6%	16.6–22.4%	24.6%
250'000	22.8%	17.6–23.6%	25.8%
275'000	23.7%	18.4–24.5%	26.8%
300'000	24.5%	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 1991–20209.8 °C

Precipitation 1991–20201'083 mm

9.8 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

602 m

Mean elevation

431 m

Relief

213 m

Mean slope

6.7°

Flat share

55.9%

South-facing

12.3%

Above 2000 m

0.0%

Relief 213 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

48.7 GWh/yr

Roofs + façades

64.3 GWh/yr

≈ households powered

10'800

49 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

29.23 Rp./kWh

Energy

13.7 Rp./kWh

Grid usage

11.3 Rp./kWh

Levies + grid surcharge

2.9 Rp./kWh

29.23 Rp./kWh9.6443.61

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

Network operator tba 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

4.41 %

Avg. rooms

3.5

Dwellings

4'310

Built before 194614.5%

Built since 200133.0%

4.41 %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 57 min · Car 44 min

AgglomerationPT 13 min · Car 12 min

Remoteness 143/196 in canton

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

Municipality

Wikidata · CC0

Websiteaarburg.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities9'040 #17 AG · #217 CH Families & children20.3% #103 AG · #1050 CH Age structure15.2% #187 AG · #1977 CH Women share48.8% #142 AG · #1610 CH Foreign residents45.8% #5 AG · #29 CH Population density2'050/km² #2 AG · #69 CH Tax burden13'379 #148 AG · #654 CH Taxes116% #149 AG Warmest municipalities9.8 °C #105 AG · #734 CH Sunniest municipalities40.1% #128 AG · #1845 CH Rainiest municipalities1'083 mm #103 AG · #1202 CH Voter turnout45.5% #185 AG · #1995 CH Against Switzerland9% #145 AG · #1301 CH Aligned with Switzerland91% #30 AG · #200 CH SVP strongholds34.7% #156 AG · #986 CH SP strongholds24.7% #5 AG · #185 CH Centre strongholds8.3% #153 AG · #1405 CH FDP strongholds10.2% #138 AG · #1372 CH GLP strongholds7.4% #91 AG · #686 CH Green strongholds5.8% #94 AG · #1381 CH Largest by area4.4 km² #141 AG · #1649 CH Highest municipalities459 m #77 AG · #1464 CH Remotest municipalities57 min #143 AG · #1435 CH Best-connected municipalities57 min #56 AG · #687 CH Highest peaks602 m #107 AG · #1537 CH Highest-lying municipalities431 m #130 AG · #1856 CH Greatest vertical range213 m #102 AG · #1301 CH Steepest municipalities6.7° #112 AG · #1289 CH Solar potential49 GWh #27 AG · #346 CH Cheapest electricity29.23 Rp./kWh #175 AG · #1297 CH Most expensive electricity29.23 Rp./kWh #22 AG · #809 CH

Postal codes (3)

swisstopo

Localities

swisstopo · 3

Aarburg4663 Oftringen4665 Olten4600

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Aarburg?: Aarburg has 3 postal codes: 4600, 4663, 4665.
What is the tax rate in Aarburg?: The municipal tax multiplier of Aarburg is 116% (2026); canton AG levies 103%.
How much tax do you pay in Aarburg?: A single person without children pays about 13'379 CHF income tax in Aarburg on 100'000 CHF gross income (federal, cantonal, municipal), rank 148 of 196 in canton AG. Source: ESTV (2026).
How many residents does Aarburg have?: Aarburg has 9'040 residents (2025).
How many foreign residents live in Aarburg?: Aarburg has 4'144 foreign residents, a share of 45.84% (2025).

Map

OpenStreetMap

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