Demographics
BFS · 2025Women
3'890 49.4%
Men
3'985 50.6%
Children & youth (0–19)
1'648 20.9%
Swiss citizens
5'363 68.1%
Foreign residents
2'512 31.9%
Population density
951 pop./km²
0–19 · 1'648 · 20.9%20–64 · 4'627 · 58.8%65+ · 1'600 · 20.3%
Foreign residents 31.9%0%64.0%
Population change 2025: +63 (+0.8%) · 65 births · 68 deaths · net migration +56
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 Baden: 26.5% Yes
26.7% YesNo 73.4%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Baden: 24.4% Yes
24.3% YesNo 75.7%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Baden: 53.5% Yes
54.5% YesNo 45.6%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Baden: 43.1% Yes
44.7% YesNo 55.3%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Baden: 45.4% Yes
47.1% YesNo 52.9%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Baden: 49.2% Yes
50.3% YesNo 49.7%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Baden: 54.5% Yes
53.2% YesNo 46.8%
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 Baden: 26.8% Yes
26.4% YesNo 73.6%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Baden: 38.7% Yes
40.1% YesNo 59.9%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Baden: 32.5% Yes
33.2% YesNo 66.8%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP30.1% · strongest party
SVP30.1%
SP19.6%
Mitte14.0%
FDP12.7%
GRÜNE8.8%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier105%
Cantonal tax multiplier103%
105%AG range 48%127%
Tax rank 79 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
12'792 CHF(12.8%)
Rank 77 of 196 in the canton · 463 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:12'792 CHF(~12.8%)
UntersiggenthalCanton range AargauSwitzerland median
Show data table
| Gross income | Untersiggenthal | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 5.1% | 3.8–5.6% | 5.4% |
| 50'000 | 7% | 5.2–7.7% | 7.8% |
| 60'000 | 8.5% | 6.4–9.3% | 10.5% |
| 70'000 | 9.8% | 7.4–10.7% | 11.9% |
| 80'000 | 10.9% | 8.2–11.9% | 13.1% |
| 90'000 | 11.7% | 8.9–12.8% | 14.1% |
| 100'000 | 12.8% | 9.8–14% | 15.3% |
| 110'000 | 13.7% | 10.5–14.9% | 16.3% |
| 120'000 | 14.5% | 11.2–15.8% | 17.2% |
| 130'000 | 15.2% | 11.7–16.5% | 18.1% |
| 140'000 | 15.9% | 12.4–17.3% | 19% |
| 150'000 | 16.6% | 13–18% | 19.7% |
| 175'000 | 18.2% | 14.4–19.7% | 21.6% |
| 200'000 | 19.6% | 15.5–21.1% | 23.2% |
| 225'000 | 20.8% | 16.6–22.4% | 24.6% |
| 250'000 | 21.9% | 17.6–23.6% | 25.8% |
| 275'000 | 22.8% | 18.4–24.5% | 26.8% |
| 300'000 | 23.6% | 19.1–25.3% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–20209.6 °C
Precipitation 1991–20201'020 mm
9.6 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
590 m
Mean elevation
436 m
Relief
264 m
Mean slope
7.5°
Flat share
43.3%
South-facing
22.0%
Above 2000 m
0.0%
Relief 264 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
41.4 GWh/yr
Roofs + façades
54.9 GWh/yr
≈ households powered
9'200
Per inhabitant
5'258 kWh/yr
41 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 range H4
28.43–29.33 Rp./kWh
28.88 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 Rp./kWh
Network operators Elektrizitäts-Genossenschaft Siggenthal · AEW Energie AG
ElCom tariff comparison ↗This municipality is served by 2 network operators with different tariffs; the range spans the cheapest and the most expensive.
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
0.84 %
Second homes
6.7 %
Avg. rooms
3.9
Dwellings
3'566
Built before 194611.0%
Built since 200124.6%
0.84 %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
3'033
Workplaces
320
Services share
36.2 %
Jobs by sector: Primary 38 (1.3%) · Secondary 1'896 (62.5%) · Tertiary 1'099 (36.2%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
7
Organic share
14.3 %
Farmland
199 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 municipalities7'875 #27 AG · #250 CHGrowing municipalities0.8% #92 AG · #897 CHShrinking municipalities0.8% #104 AG · #1213 CHJobs per resident0.39 #61 AG · #889 CHFamilies & children20.9% #75 AG · #852 CHAge structure20.3% #77 AG · #1181 CHWomen share49.4% #100 AG · #1335 CHForeign residents31.9% #31 AG · #235 CHPopulation density951/km² #38 AG · #240 CHTax burden12'792 #86 AG · #472 CHTaxes105% #79 AGWarmest municipalities9.6 °C #135 AG · #894 CHSunniest municipalities39.7% #170 AG · #1997 CHRainiest municipalities1'020 mm #167 AG · #1537 CHVoter turnout57.2% #68 AG · #925 CHAgainst Switzerland5.9% #158 AG · #1419 CHAligned with Switzerland94.1% #9 AG · #70 CHSVP strongholds30.1% #177 AG · #1265 CHSP strongholds19.6% #18 AG · #494 CHCentre strongholds14% #73 AG · #899 CHFDP strongholds12.7% #74 AG · #1068 CHGLP strongholds8.6% #62 AG · #500 CHGreen strongholds8.8% #15 AG · #742 CHLargest by area8.3 km² #64 AG · #1118 CHHighest municipalities449 m #84 AG · #1544 CHSecond homes6.7% #142 AG · #1874 CHOrganic farming14.3% #66 AG · #930 CHBest-connected municipalities59 min #69 AG · #752 CHRemotest municipalities59 min #127 AG · #1375 CHHighest peaks590 m #113 AG · #1579 CHHighest-lying municipalities436 m #124 AG · #1820 CHGreatest vertical range264 m #61 AG · #1103 CHSteepest municipalities7.5° #88 AG · #1166 CHSolar potential41 GWh #32 AG · #441 CHSolar potential per capita5'258 kWh #183 AG · #1943 CHCheapest electricity28.88 Rp./kWh #120 AG · #1601 CHMost expensive electricity28.88 Rp./kWh #77 AG · #506 CH
Postal codes (3)
swisstopoLocalities
swisstopo · 3Nearby municipalities
swisstopo- What is the postal code of Untersiggenthal?
- Untersiggenthal has 3 postal codes: 5301, 5416, 5417.
- What is the tax rate in Untersiggenthal?
- The municipal tax multiplier of Untersiggenthal is 105% (2026); canton AG levies 103%.
- How much tax do you pay in Untersiggenthal?
- A single person without children pays about 12'792 CHF income tax in Untersiggenthal on 100'000 CHF gross income (federal, cantonal, municipal), rank 77 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Untersiggenthal have?
- Untersiggenthal has 7'875 residents (2025).
- How many foreign residents live in Untersiggenthal?
- Untersiggenthal has 2'512 foreign residents, a share of 31.9% (2025).
Map
OpenStreetMapUntersiggenthal compared with
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