Demographics
BFS · 2025Women
4'427 50.9%
Men
4'272 49.1%
Children & youth (0–19)
1'795 20.6%
Swiss citizens
6'478 74.5%
Foreign residents
2'221 25.5%
Population density
505 pop./km²
0–19 · 1'795 · 20.6%20–64 · 5'114 · 58.8%65+ · 1'790 · 20.6%
Foreign residents 25.5%0%64.0%
Population change 2025: +7 (+0.1%) · 61 births · 71 deaths · net migration +6
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 Aarau: 29.6% Yes
26.0% YesNo 74.0%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Aarau: 23.9% Yes
32.4% YesNo 67.7%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Aarau: 51.7% Yes
58.0% YesNo 42.0%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Aarau: 43.2% Yes
55.9% YesNo 44.1%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Aarau: 45.3% Yes
39.9% YesNo 60.1%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Aarau: 67.7% Yes
79.7% YesNo 20.3%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Aarau: 53.7% Yes
45.8% YesNo 54.2%
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 Aarau: 31.0% Yes
22.3% YesNo 77.7%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Aarau: 35.4% Yes
45.1% YesNo 54.9%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Aarau: 31.8% Yes
41.3% YesNo 58.7%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP36.6% · strongest party
SVP36.6%
SP15.5%
FDP15.1%
Mitte8.0%
GLP7.4%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier111%
Cantonal tax multiplier103%
111%AG range 48%127%
Tax rank 116 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
13'112 CHF(13.1%)
Rank 116 of 196 in the canton · 562 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:13'112 CHF(~13.1%)
GränichenCanton range AargauSwitzerland median
Show data table
| Gross income | Gränichen | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 5.3% | 3.8–5.6% | 5.4% |
| 50'000 | 7.2% | 5.2–7.7% | 7.8% |
| 60'000 | 8.7% | 6.4–9.3% | 10.5% |
| 70'000 | 10.1% | 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 | 14.1% | 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 | 16.3% | 12.4–17.3% | 19% |
| 150'000 | 17% | 13–18% | 19.7% |
| 175'000 | 18.6% | 14.4–19.7% | 21.6% |
| 200'000 | 20% | 15.5–21.1% | 23.2% |
| 225'000 | 21.3% | 16.6–22.4% | 24.6% |
| 250'000 | 22.4% | 17.6–23.6% | 25.8% |
| 275'000 | 23.3% | 18.4–24.5% | 26.8% |
| 300'000 | 24.1% | 19.1–25.3% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–20209.7 °C
Precipitation 1991–20201'107 mm
9.7 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
630 m
Mean elevation
488 m
Relief
232 m
Mean slope
10.8°
Flat share
27.3%
South-facing
16.0%
Above 2000 m
0.0%
Relief 232 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
54.4 GWh/yr
Roofs + façades
72.9 GWh/yr
≈ households powered
12'100
Per inhabitant
6'257 kWh/yr
54 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
25.35 Rp./kWh
Energy
9.91 Rp./kWh
Grid usage
10.87 Rp./kWh
Levies + grid surcharge
3.05 Rp./kWh
25.35 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator TB Gränichen 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
0.97 %
Second homes
6.4 %
Avg. rooms
4
Dwellings
3'928
Built before 194618.3%
Built since 200133.7%
0.97 %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
2'900
Workplaces
398
Services share
52.1 %
Jobs by sector: Primary 80 (2.8%) · Secondary 1'308 (45.1%) · Tertiary 1'512 (52.1%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
30
Organic share
16.7 %
Farmland
416 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 municipalities8'699 #22 AG · #229 CHGrowing municipalities0.1% #138 AG · #1364 CHShrinking municipalities0.1% #58 AG · #744 CHJobs per resident0.33 #81 AG · #1138 CHFamilies & children20.6% #84 AG · #948 CHAge structure20.6% #68 AG · #1124 CHWomen share50.9% #12 AG · #460 CHForeign residents25.5% #65 AG · #525 CHPopulation density505/km² #78 AG · #498 CHTax burden13'112 #118 AG · #564 CHTaxes111% #116 AGWarmest municipalities9.7 °C #107 AG · #809 CHSunniest municipalities40% #132 AG · #1889 CHRainiest municipalities1'107 mm #73 AG · #1067 CHVoter turnout52% #146 AG · #1588 CHAgainst Switzerland14.7% #85 AG · #931 CHAligned with Switzerland85.3% #75 AG · #529 CHSVP strongholds36.6% #143 AG · #865 CHSP strongholds15.5% #54 AG · #895 CHCentre strongholds8% #159 AG · #1446 CHFDP strongholds15.1% #32 AG · #813 CHGLP strongholds7.4% #88 AG · #684 CHGreen strongholds6.1% #77 AG · #1313 CHLargest by area17.2 km² #8 AG · #558 CHHighest municipalities411 m #124 AG · #1835 CHSecond homes6.4% #148 AG · #1918 CHOrganic farming16.7% #52 AG · #793 CHBest-connected municipalities70 min #135 AG · #1083 CHRemotest municipalities70 min #60 AG · #1032 CHHighest peaks630 m #92 AG · #1422 CHHighest-lying municipalities488 m #81 AG · #1488 CHGreatest vertical range232 m #84 AG · #1218 CHSteepest municipalities10.8° #37 AG · #865 CHSolar potential54 GWh #21 AG · #277 CHSolar potential per capita6'257 kWh #160 AG · #1794 CHCheapest electricity25.35 Rp./kWh #26 AG · #492 CHMost expensive electricity25.35 Rp./kWh #171 AG · #1615 CH
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopo- What is the postal code of Gränichen?
- Gränichen has 2 postal codes: 5722, 5723.
- What is the tax rate in Gränichen?
- The municipal tax multiplier of Gränichen is 111% (2026); canton AG levies 103%.
- How much tax do you pay in Gränichen?
- A single person without children pays about 13'112 CHF income tax in Gränichen on 100'000 CHF gross income (federal, cantonal, municipal), rank 116 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Gränichen have?
- Gränichen has 8'699 residents (2025).
- How many foreign residents live in Gränichen?
- Gränichen has 2'221 foreign residents, a share of 25.53% (2025).
Map
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