Demographics
BFS · 2025Women
2'930 49.0%
Men
3'055 51.0%
Children & youth (0–19)
1'127 18.8%
Swiss citizens
4'099 68.5%
Foreign residents
1'886 31.5%
Population density
1'221 pop./km²
0–19 · 1'127 · 18.8%20–64 · 3'679 · 61.5%65+ · 1'179 · 19.7%
Foreign residents 31.5%0%64.0%
Population change 2025: +161 (+2.8%) · 62 births · 38 deaths · net migration +137
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026 · swisstopo, retrieved 24.09.2026 · BEVNAT (Statistik der natürlichen Bevölkerungsbewegung) 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026
27.09.2026Popular Initiative 'For food security – through increased sustainable domestic production, more plant-based food and clean drinking water (Food Initiative)'Federal● Rejected · 27.5% YesDistrict Bezirk Rheinfelden: 24.4% Yes
24.4% YesNo 75.6%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Rheinfelden: 28.1% Yes
30.5% YesNo 69.5%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Rheinfelden: 54.8% Yes
53.6% YesNo 46.4%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Rheinfelden: 48.0% Yes
46.9% YesNo 53.1%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Rheinfelden: 45.1% Yes
50.5% YesNo 49.5%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Rheinfelden: 44.4% Yes
45.8% YesNo 54.2%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Rheinfelden: 49.7% Yes
54.4% YesNo 45.6%
08.03.2026Popular Initiative ‘For a fair energy and climate policy: Investing for prosperity, jobs and the environment (Climate Fund Initiative)’Federal● Rejected · 29.3% YesDistrict Bezirk Rheinfelden: 23.6% Yes
22.5% YesNo 77.5%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Rheinfelden: 41.4% Yes
45.4% YesNo 54.6%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Rheinfelden: 37.7% Yes
41.7% YesNo 58.3%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP34.3% · strongest party
SVP34.3%
SP22.3%
Mitte12.0%
FDP11.3%
GLP8.2%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier50%
Cantonal tax multiplier103%
50%AG range 48%127%
Tax rank 2 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
9'859 CHF(9.9%)
Rank 2 of 196 in the canton · 56 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
100'000 CHF:9'859 CHF(~9.9%)
KaiseraugstCanton range AargauSwitzerland median
Show data table
| Gross income | Kaiseraugst | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 3.9% | 3.8–5.6% | 5.4% |
| 50'000 | 5.2% | 5.2–7.7% | 7.8% |
| 60'000 | 6.4% | 6.4–9.3% | 10.5% |
| 70'000 | 7.5% | 7.4–10.7% | 11.9% |
| 80'000 | 8.3% | 8.2–11.9% | 13.1% |
| 90'000 | 9% | 8.9–12.8% | 14.1% |
| 100'000 | 9.9% | 9.8–14% | 15.3% |
| 110'000 | 10.6% | 10.5–14.9% | 16.3% |
| 120'000 | 11.3% | 11.2–15.8% | 17.2% |
| 130'000 | 11.9% | 11.7–16.5% | 18.1% |
| 140'000 | 12.5% | 12.4–17.3% | 19% |
| 150'000 | 13.1% | 13–18% | 19.7% |
| 175'000 | 14.5% | 14.4–19.7% | 21.6% |
| 200'000 | 15.7% | 15.5–21.1% | 23.2% |
| 225'000 | 16.8% | 16.6–22.4% | 24.6% |
| 250'000 | 17.8% | 17.6–23.6% | 25.8% |
| 275'000 | 18.6% | 18.4–24.5% | 26.8% |
| 300'000 | 19.3% | 19.1–25.3% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–202011.1 °C
Precipitation 1991–2020898 mm
11.1 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
383 m
Mean elevation
308 m
Relief
122 m
Mean slope
5.3°
Flat share
60.3%
South-facing
8.0%
Above 2000 m
0.0%
Relief 122 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
Roof potential
44.3 GWh/yr
Roofs + façades
54.5 GWh/yr
≈ households powered
9'800
Per inhabitant
7'395 kWh/yr
44 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 24.09.2026
Electricity
ElCom · 2027Tariff H4
29.86 Rp./kWh
Energy
10.37 Rp./kWh
Grid usage
14.95 Rp./kWh
Levies + grid surcharge
3.24 Rp./kWh
29.86 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 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.
2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026
Health-insurance premiums
BAG · 2024Standard model, deductible 300570 CHF/mo
Ø premium in canton Aargau392 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo
Premiums are set not per municipality but per canton and premium region. Shown is the average adult premium paid in canton Aargau (2024, BAG) — it applies canton-wide, not to any single location.
2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026
Housing
BFS · AREVacancy rate
0.93 %
Second homes
5.9 %
Avg. rooms
3.6
Dwellings
2'798
Built before 19465.6%
Built since 200131.4%
0.93 %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 24.09.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Dwelling inventory and second-home share 2026 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026
Economy
BFS · 2024Jobs
6'826
Workplaces
253
Services share
25.9 %
Jobs by sector: Primary 10 (0.1%) · Secondary 5'048 (74.0%) · Tertiary 1'768 (25.9%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
4
Organic share
0 %
Farmland
58 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026
Accessibility
ARE · NPVMNational Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026
Municipality
Wikidata · CC0Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities5'985 #34 AG · #345 CHGrowing municipalities2.8% #23 AG · #189 CHShrinking municipalities2.8% #174 AG · #1920 CHJobs per resident1.14 #5 AG · #70 CHFamilies & children18.8% #154 AG · #1506 CHAge structure19.7% #99 AG · #1309 CHWomen share49% #130 AG · #1528 CHForeign residents31.5% #33 AG · #250 CHPopulation density1'221/km² #20 AG · #165 CHTax burden9'859 #3 AG · #57 CHTaxes50% #2 AGWarmest municipalities11.1 °C #1 AG · #51 CHSunniest municipalities42.1% #1 AG · #1115 CHRainiest municipalities898 mm #196 AG · #1952 CHVoter turnout46.4% #185 AG · #1994 CHAgainst Switzerland5.9% #160 AG · #1421 CHAligned with Switzerland94.1% #11 AG · #72 CHSVP strongholds34.3% #161 AG · #1022 CHSP strongholds22.3% #11 AG · #309 CHCentre strongholds12% #99 AG · #1040 CHFDP strongholds11.3% #105 AG · #1238 CHGLP strongholds8.2% #70 AG · #552 CHGreen strongholds5.5% #106 AG · #1447 CHLargest by area4.9 km² #127 AG · #1564 CHHighest municipalities295 m #191 AG · #2062 CHSecond homes5.9% #162 AG · #1974 CHOrganic farming0% #182 AG · #1877 CHBest-connected municipalities30 min #1 AG · #80 CHRemotest municipalities30 min #196 AG · #2031 CHHighest peaks383 m #194 AG · #2097 CHHighest-lying municipalities308 m #194 AG · #2096 CHGreatest vertical range122 m #169 AG · #1724 CHSteepest municipalities5.3° #141 AG · #1518 CHSolar potential44 GWh #29 AG · #402 CHSolar potential per capita7'395 kWh #133 AG · #1603 CHCheapest electricity29.86 Rp./kWh #174 AG · #1779 CHMost expensive electricity29.86 Rp./kWh #37 AG · #342 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Kaiseraugst?
- The postal code of Kaiseraugst is 4303.
- What is the tax rate in Kaiseraugst?
- The municipal tax multiplier of Kaiseraugst is 50% (2026); canton AG levies 103%.
- How much tax do you pay in Kaiseraugst?
- A single person without children pays about 9'859 CHF income tax in Kaiseraugst on 100'000 CHF gross income (federal, cantonal, municipal), rank 2 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Kaiseraugst have?
- Kaiseraugst has 5'985 residents (2025).
- How many foreign residents live in Kaiseraugst?
- Kaiseraugst has 1'886 foreign residents, a share of 31.51% (2025).
Map
OpenStreetMapKaiseraugst compared with
- Kaiseraugst vs. Baden
- Kaiseraugst vs. Aarau
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- Kaiseraugst vs. Spreitenbach
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- Kaiseraugst vs. Suhr
- Kaiseraugst vs. Baden
- Kaiseraugst vs. Aarau
- Kaiseraugst vs. Wettingen
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- Kaiseraugst vs. Oftringen
- Kaiseraugst vs. Rheinfelden
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