Demographics
BFS · 2025Women
179 48.9%
Men
187 51.1%
Children & youth (0–19)
66 18.0%
Swiss citizens
297 81.2%
Foreign residents
69 18.9%
Population density
79 pop./km²
0–19 · 66 · 18.0%20–64 · 192 · 52.5%65+ · 108 · 29.5%
Foreign residents 18.9%0%64.0%
Population change 2025: +6 (+1.7%) · 4 births · 5 deaths · net migration +7
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
24.8% YesNo 75.2%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Rheinfelden: 28.1% Yes
30.9% YesNo 69.1%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Rheinfelden: 54.8% Yes
60.1% YesNo 39.9%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Rheinfelden: 48.0% Yes
55.2% YesNo 44.8%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Rheinfelden: 45.1% Yes
43.3% YesNo 56.7%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Rheinfelden: 44.4% Yes
62.6% YesNo 37.4%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Rheinfelden: 49.7% Yes
54.3% YesNo 45.7%
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
24.4% YesNo 75.6%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Rheinfelden: 41.4% Yes
45.7% YesNo 54.3%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Rheinfelden: 37.7% Yes
43.0% YesNo 57.1%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP41.5% · strongest party
SVP41.5%
SP14.7%
FDP13.2%
Mitte9.8%
GRÜNE7.0%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier92%
Cantonal tax multiplier103%
92%AG range 48%127%
Tax rank 25 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
12'099 CHF(12.1%)
Rank 24 of 196 in the canton · 328 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:12'099 CHF(~12.1%)
OlsbergCanton range AargauSwitzerland median
Show data table
| Gross income | Olsberg | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 4.8% | 3.8–5.6% | 5.4% |
| 50'000 | 6.6% | 5.2–7.7% | 7.8% |
| 60'000 | 8% | 6.4–9.3% | 10.5% |
| 70'000 | 9.3% | 7.4–10.7% | 11.9% |
| 80'000 | 10.3% | 8.2–11.9% | 13.1% |
| 90'000 | 11.1% | 8.9–12.8% | 14.1% |
| 100'000 | 12.1% | 9.8–14% | 15.3% |
| 110'000 | 13% | 10.5–14.9% | 16.3% |
| 120'000 | 13.7% | 11.2–15.8% | 17.2% |
| 130'000 | 14.4% | 11.7–16.5% | 18.1% |
| 140'000 | 15.1% | 12.4–17.3% | 19% |
| 150'000 | 15.8% | 13–18% | 19.7% |
| 175'000 | 17.3% | 14.4–19.7% | 21.6% |
| 200'000 | 18.6% | 15.5–21.1% | 23.2% |
| 225'000 | 19.9% | 16.6–22.4% | 24.6% |
| 250'000 | 20.9% | 17.6–23.6% | 25.8% |
| 275'000 | 21.8% | 18.4–24.5% | 26.8% |
| 300'000 | 22.6% | 19.1–25.3% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–202010.5 °C
Precipitation 1991–2020953 mm
10.5 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
571 m
Mean elevation
414 m
Relief
271 m
Mean slope
8.9°
Flat share
27.7%
South-facing
25.9%
Above 2000 m
0.0%
Relief 271 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
4.6 GWh/yr
Roofs + façades
5.8 GWh/yr
≈ households powered
1'000
Per inhabitant
12'459 kWh/yr
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 24.09.2026
Electricity
ElCom · 2027Tariff H4
27.7 Rp./kWh
Energy
11 Rp./kWh
Grid usage
12.98 Rp./kWh
Levies + grid surcharge
2.3 Rp./kWh
27.7 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator ELEKTRAGENOSSENSCHAFT OLSBERG
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
1.6 %
Second homes
10.7 %
Avg. rooms
4.6
Dwellings
187
Built before 194626.7%
Built since 200120.9%
1.6 %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
108
Workplaces
29
Services share
75 %
Jobs by sector: Primary 0 (0.0%) · Secondary 0 (0.0%) · Tertiary 81 (75.0%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
9
Organic share
22.2 %
Farmland
228 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 municipalities366 #192 AG · #1912 CHGrowing municipalities1.7% #49 AG · #456 CHShrinking municipalities1.7% #148 AG · #1652 CHJobs per resident0.3 #98 AG · #1296 CHFamilies & children18% #174 AG · #1674 CHAge structure29.5% #2 AG · #113 CHWomen share48.9% #135 AG · #1569 CHForeign residents18.9% #125 AG · #958 CHPopulation density79/km² #192 AG · #1594 CHTax burden12'099 #26 AG · #330 CHTaxes92% #25 AGWarmest municipalities10.5 °C #13 AG · #222 CHSunniest municipalities41.5% #3 AG · #1229 CHRainiest municipalities953 mm #193 AG · #1809 CHVoter turnout63.8% #10 AG · #272 CHSVP strongholds41.5% #108 AG · #591 CHSP strongholds14.7% #66 AG · #978 CHCentre strongholds9.8% #126 AG · #1224 CHFDP strongholds13.2% #64 AG · #1013 CHGLP strongholds6.5% #118 AG · #866 CHGreen strongholds7% #52 AG · #1108 CHLargest by area4.6 km² #133 AG · #1610 CHHighest municipalities374 m #166 AG · #1983 CHSecond homes10.7% #31 AG · #1098 CHOrganic farming22.2% #35 AG · #550 CHBest-connected municipalities46 min #10 AG · #369 CHRemotest municipalities46 min #188 AG · #1743 CHHighest peaks571 m #125 AG · #1644 CHHighest-lying municipalities414 m #149 AG · #1932 CHGreatest vertical range271 m #58 AG · #1079 CHSteepest municipalities8.9° #64 AG · #1029 CHSolar potential5 GWh #193 AG · #1950 CHSolar potential per capita12'459 kWh #26 AG · #699 CHCheapest electricity27.7 Rp./kWh #99 AG · #1192 CHMost expensive electricity27.7 Rp./kWh #98 AG · #915 CH
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopo- What is the postal code of Olsberg?
- Olsberg has 2 postal codes: 4304, 4305.
- What is the tax rate in Olsberg?
- The municipal tax multiplier of Olsberg is 92% (2026); canton AG levies 103%.
- How much tax do you pay in Olsberg?
- A single person without children pays about 12'099 CHF income tax in Olsberg on 100'000 CHF gross income (federal, cantonal, municipal), rank 24 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Olsberg have?
- Olsberg has 366 residents (2025).
- How many foreign residents live in Olsberg?
- Olsberg has 69 foreign residents, a share of 18.85% (2025).
Map
OpenStreetMapOlsberg compared with
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