What is the postal code of Islisberg?

The postal code of Islisberg is 8905.

What is the tax rate in Islisberg?

The municipal tax multiplier of Islisberg is 98% (2026); canton AG levies 103%.

How much tax do you pay in Islisberg?

A single person without children pays about 12'419 CHF income tax in Islisberg on 100'000 CHF gross income (federal, cantonal, municipal), rank 43 of 196 in canton AG. Source: ESTV (2026).

How many residents does Islisberg have?

Islisberg has 682 residents (2025).

How many foreign residents live in Islisberg?

Islisberg has 102 foreign residents, a share of 14.96% (2025).

Switzerland · Canton AG

Islisberg

8905

AG CANTON8905

Residents

682

Area

1.7 km²

Population density

411 pop./km²

Elevation

680 m a.s.l.

Tax multiplier

98%

Postal codes

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

Demographics

BFS · 2025

Women

329 48.2%

Men

353 51.8%

Children & youth (0–19)

147 21.6%

Swiss citizens

580 85.0%

Foreign residents

102 15.0%

Population density

411 pop./km²

0–19 · 147 · 21.6%20–64 · 419 · 61.4%65+ · 116 · 17.0%

Foreign residents 15.0%0%64.0%

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

Vote results for Islisberg

BFS

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

63.6% YesNo 36.4%

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

36.2% YesNo 63.8%

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

53.9% YesNo 46.1%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

40.5% YesNo 59.5%

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

19.8% YesNo 80.3%

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

42.2% YesNo 57.8%

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

40.0% YesNo 60.0%

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

77.7% YesNo 22.3%

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

SVP44.3% · strongest party

SVP44.3%

Mitte14.5%

GLP11.3%

FDP9.5%

SP8.5%

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

Taxes 2026

ESTV

Municipal tax multiplier98%

Cantonal tax multiplier103%

98%AG range 48%127%

Tax rank 45 of 196 in canton Aargau

Tax burden

Single, 100'000 CHF gross income

12'419 CHF(12.4%)

Rank 43 of 196 in the canton · 378 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:12'419 CHF(~12.4%)

IslisbergCanton range AargauSwitzerland median

Show data table

Gross income	Islisberg	Aargau	Switzerland median
40'000	5%	3.8–5.6%	5.4%
50'000	6.8%	5.2–7.7%	7.8%
60'000	8.2%	6.4–9.3%	10.5%
70'000	9.5%	7.4–10.7%	11.9%
80'000	10.5%	8.2–11.9%	13.1%
90'000	11.4%	8.9–12.8%	14.1%
100'000	12.4%	9.8–14%	15.3%
110'000	13.3%	10.5–14.9%	16.3%
120'000	14.1%	11.2–15.8%	17.2%
130'000	14.8%	11.7–16.5%	18.1%
140'000	15.5%	12.4–17.3%	19%
150'000	16.1%	13–18%	19.7%
175'000	17.7%	14.4–19.7%	21.6%
200'000	19.1%	15.5–21.1%	23.2%
225'000	20.3%	16.6–22.4%	24.6%
250'000	21.4%	17.6–23.6%	25.8%
275'000	22.3%	18.4–24.5%	26.8%
300'000	23%	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 1991–20209.4 °C

Precipitation 1991–20201'145 mm

9.4 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

680 m

Mean elevation

648 m

Relief

101 m

Mean slope

6.8°

Flat share

35.5%

South-facing

19.2%

Above 2000 m

0.0%

Relief 101 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

4.9 GWh/yr

Roofs + façades

6.6 GWh/yr

≈ households powered

1'100

5 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

25.46 Rp./kWh

Energy

11.6 Rp./kWh

Grid usage

10.36 Rp./kWh

Levies + grid surcharge

2.3 Rp./kWh

25.46 Rp./kWh9.6443.61

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

Network operator Elektra Genossenschaft Arni-Islisberg

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

0.65 %

Avg. rooms

4.3

Dwellings

308

Built before 19469.1%

Built since 200146.8%

0.65 %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 55 min · Car 25 min

AgglomerationPT 55 min · Car 25 min

Remoteness 154/196 in canton

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

Municipality

Wikidata · CC0

Websiteislisberg.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities682 #183 AG · #1660 CH Families & children21.6% #44 AG · #638 CH Age structure17% #163 AG · #1775 CH Women share48.2% #167 AG · #1820 CH Foreign residents15% #159 AG · #1284 CH Population density411/km² #99 AG · #599 CH Tax burden12'419 #46 AG · #381 CH Taxes98% #45 AG Warmest municipalities9.4 °C #166 AG · #1066 CH Sunniest municipalities40.4% #47 AG · #1652 CH Rainiest municipalities1'145 mm #8 AG · #855 CH Voter turnout66.1% #4 AG · #120 CH SVP strongholds44.3% #76 AG · #439 CH SP strongholds8.5% #165 AG · #1654 CH Centre strongholds14.5% #64 AG · #861 CH FDP strongholds9.5% #154 AG · #1450 CH GLP strongholds11.3% #12 AG · #195 CH Green strongholds5.8% #91 AG · #1378 CH Largest by area1.7 km² #193 AG · #2048 CH Highest municipalities680 m #3 AG · #639 CH Remotest municipalities55 min #154 AG · #1491 CH Best-connected municipalities55 min #39 AG · #626 CH Highest peaks680 m #59 AG · #1269 CH Highest-lying municipalities648 m #8 AG · #892 CH Greatest vertical range101 m #182 AG · #1832 CH Steepest municipalities6.8° #107 AG · #1268 CH Solar potential5 GWh #189 AG · #1916 CH Cheapest electricity25.46 Rp./kWh #19 AG · #425 CH Most expensive electricity25.46 Rp./kWh #178 AG · #1681 CH

Postal codes (1)

swisstopo

8905

Islisberg

Localities

swisstopo · 1

Islisberg8905

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Islisberg?: The postal code of Islisberg is 8905.
What is the tax rate in Islisberg?: The municipal tax multiplier of Islisberg is 98% (2026); canton AG levies 103%.
How much tax do you pay in Islisberg?: A single person without children pays about 12'419 CHF income tax in Islisberg on 100'000 CHF gross income (federal, cantonal, municipal), rank 43 of 196 in canton AG. Source: ESTV (2026).
How many residents does Islisberg have?: Islisberg has 682 residents (2025).
How many foreign residents live in Islisberg?: Islisberg has 102 foreign residents, a share of 14.96% (2025).

Map

OpenStreetMap

Compare

Islisberg compared with