Demographics
BFS · 2025Women
727 50.2%
Men
722 49.8%
Children & youth (0–19)
288 19.9%
Swiss citizens
1'274 87.9%
Foreign residents
175 12.1%
Population density
129 pop./km²
0–19 · 288 · 19.9%20–64 · 877 · 60.5%65+ · 284 · 19.6%
Foreign residents 12.1%0%64.0%
Population change 2025: +20 (+1.4%) · 10 births · 7 deaths · net migration +22
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 Laufenburg: 23.2% Yes
23.3% YesNo 76.8%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Laufenburg: 31.7% Yes
36.0% YesNo 64.0%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Laufenburg: 58.3% Yes
63.1% YesNo 36.9%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Laufenburg: 54.4% Yes
58.5% YesNo 41.5%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Laufenburg: 41.2% Yes
39.9% YesNo 60.1%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Laufenburg: 48.7% Yes
47.5% YesNo 52.5%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Laufenburg: 43.1% Yes
43.5% YesNo 56.5%
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 Laufenburg: 20.9% Yes
18.7% YesNo 81.3%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Laufenburg: 43.0% Yes
42.8% YesNo 57.2%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Laufenburg: 38.1% Yes
38.1% YesNo 61.9%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP43.9% · strongest party
SVP43.9%
Mitte17.5%
SP11.1%
GRÜNE9.1%
FDP8.1%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier119%
Cantonal tax multiplier103%
119%AG range 48%127%
Tax rank 167 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
13'539 CHF(13.5%)
Rank 167 of 196 in the canton · 702 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:13'539 CHF(~13.5%)
WittnauCanton range AargauSwitzerland median
Show data table
| Gross income | Wittnau | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 5.4% | 3.8–5.6% | 5.4% |
| 50'000 | 7.4% | 5.2–7.7% | 7.8% |
| 60'000 | 9% | 6.4–9.3% | 10.5% |
| 70'000 | 10.4% | 7.4–10.7% | 11.9% |
| 80'000 | 11.5% | 8.2–11.9% | 13.1% |
| 90'000 | 12.4% | 8.9–12.8% | 14.1% |
| 100'000 | 13.5% | 9.8–14% | 15.3% |
| 110'000 | 14.5% | 10.5–14.9% | 16.3% |
| 120'000 | 15.3% | 11.2–15.8% | 17.2% |
| 130'000 | 16% | 11.7–16.5% | 18.1% |
| 140'000 | 16.8% | 12.4–17.3% | 19% |
| 150'000 | 17.5% | 13–18% | 19.7% |
| 175'000 | 19.2% | 14.4–19.7% | 21.6% |
| 200'000 | 20.5% | 15.5–21.1% | 23.2% |
| 225'000 | 21.8% | 16.6–22.4% | 24.6% |
| 250'000 | 23% | 17.6–23.6% | 25.8% |
| 275'000 | 23.9% | 18.4–24.5% | 26.8% |
| 300'000 | 24.7% | 19.1–25.3% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–202010.1 °C
Precipitation 1991–20201'080 mm
10.1 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
715 m
Mean elevation
534 m
Relief
337 m
Mean slope
14.1°
Flat share
26.0%
South-facing
26.7%
Above 2000 m
0.0%
Relief 337 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
14 GWh/yr
Roofs + façades
18.2 GWh/yr
≈ households powered
3'100
Per inhabitant
9'676 kWh/yr
14 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
26.82 Rp./kWh
Energy
11.62 Rp./kWh
Grid usage
11.05 Rp./kWh
Levies + grid surcharge
2.55 Rp./kWh
26.82 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Energie Oberes Fricktal 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
1.79 %
Second homes
8.5 %
Avg. rooms
4.2
Dwellings
670
Built before 194625.4%
Built since 200130.1%
1.79 %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
265
Workplaces
96
Services share
44.5 %
Jobs by sector: Primary 43 (16.2%) · Secondary 104 (39.2%) · Tertiary 118 (44.5%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
13
Organic share
38.5 %
Farmland
328 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 municipalities1'449 #137 AG · #1195 CHGrowing municipalities1.4% #64 AG · #584 CHShrinking municipalities1.4% #133 AG · #1525 CHJobs per resident0.18 #175 AG · #1866 CHFamilies & children19.9% #120 AG · #1187 CHAge structure19.6% #101 AG · #1326 CHWomen share50.2% #45 AG · #813 CHForeign residents12.1% #178 AG · #1538 CHPopulation density129/km² #179 AG · #1318 CHTax burden13'539 #172 AG · #707 CHTaxes119% #167 AGWarmest municipalities10.1 °C #44 AG · #430 CHSunniest municipalities40.4% #49 AG · #1654 CHRainiest municipalities1'080 mm #106 AG · #1220 CHVoter turnout61.9% #19 AG · #431 CHAgainst Switzerland18.6% #49 AG · #621 CHAligned with Switzerland81.4% #117 AG · #832 CHSVP strongholds43.9% #80 AG · #457 CHSP strongholds11.1% #128 AG · #1403 CHCentre strongholds17.5% #29 AG · #671 CHFDP strongholds8.1% #173 AG · #1589 CHGLP strongholds5.8% #139 AG · #1018 CHGreen strongholds9.1% #14 AG · #692 CHLargest by area11.3 km² #32 AG · #874 CHHighest municipalities404 m #129 AG · #1877 CHSecond homes8.5% #80 AG · #1515 CHOrganic farming38.5% #7 AG · #211 CHBest-connected municipalities57 min #56 AG · #687 CHRemotest municipalities57 min #141 AG · #1432 CHHighest peaks715 m #38 AG · #1169 CHHighest-lying municipalities534 m #45 AG · #1286 CHGreatest vertical range337 m #26 AG · #930 CHSteepest municipalities14.1° #7 AG · #615 CHSolar potential14 GWh #130 AG · #1288 CHSolar potential per capita9'676 kWh #68 AG · #1128 CHCheapest electricity26.82 Rp./kWh #77 AG · #1084 CHMost expensive electricity26.82 Rp./kWh #121 AG · #1024 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Wittnau?
- The postal code of Wittnau is 5064.
- What is the tax rate in Wittnau?
- The municipal tax multiplier of Wittnau is 119% (2026); canton AG levies 103%.
- How much tax do you pay in Wittnau?
- A single person without children pays about 13'539 CHF income tax in Wittnau on 100'000 CHF gross income (federal, cantonal, municipal), rank 167 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Wittnau have?
- Wittnau has 1'449 residents (2025).
- How many foreign residents live in Wittnau?
- Wittnau has 175 foreign residents, a share of 12.08% (2025).
Map
OpenStreetMapWittnau compared with
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