Demographics
BFS · 2025Women
1'902 50.0%
Men
1'905 50.0%
Children & youth (0–19)
795 20.9%
Swiss citizens
2'534 66.6%
Foreign residents
1'273 33.4%
Population density
429 pop./km²
0–19 · 795 · 20.9%20–64 · 2'285 · 60.0%65+ · 727 · 19.1%
Foreign residents 33.4%0%64.0%
Population change 2025: +6 (+0.2%) · 32 births · 30 deaths · net migration −1
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 Kulm: 23.1% Yes
22.1% YesNo 77.9%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Kulm: 41.0% Yes
43.7% YesNo 56.3%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Kulm: 61.0% Yes
61.6% YesNo 38.4%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Kulm: 66.5% Yes
67.7% YesNo 32.3%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Kulm: 36.9% Yes
38.2% YesNo 61.8%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Kulm: 65.8% Yes
73.2% YesNo 26.8%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Kulm: 42.2% Yes
42.4% YesNo 57.6%
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 Kulm: 17.3% Yes
16.7% YesNo 83.3%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Kulm: 51.6% Yes
55.7% YesNo 44.3%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Kulm: 48.0% Yes
52.5% YesNo 47.5%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP50.3% · strongest party
SVP50.3%
SP12.7%
FDP10.0%
Mitte6.2%
GRÜNE6.2%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier115%
Cantonal tax multiplier103%
115%AG range 48%127%
Tax rank 139 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
13'325 CHF(13.3%)
Rank 139 of 196 in the canton · 632 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:13'325 CHF(~13.3%)
UnterkulmCanton range AargauSwitzerland median
Show data table
| Gross income | Unterkulm | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 5.4% | 3.8–5.6% | 5.4% |
| 50'000 | 7.3% | 5.2–7.7% | 7.8% |
| 60'000 | 8.9% | 6.4–9.3% | 10.5% |
| 70'000 | 10.2% | 7.4–10.7% | 11.9% |
| 80'000 | 11.3% | 8.2–11.9% | 13.1% |
| 90'000 | 12.2% | 8.9–12.8% | 14.1% |
| 100'000 | 13.3% | 9.8–14% | 15.3% |
| 110'000 | 14.3% | 10.5–14.9% | 16.3% |
| 120'000 | 15.1% | 11.2–15.8% | 17.2% |
| 130'000 | 15.8% | 11.7–16.5% | 18.1% |
| 140'000 | 16.5% | 12.4–17.3% | 19% |
| 150'000 | 17.2% | 13–18% | 19.7% |
| 175'000 | 18.9% | 14.4–19.7% | 21.6% |
| 200'000 | 20.3% | 15.5–21.1% | 23.2% |
| 225'000 | 21.5% | 16.6–22.4% | 24.6% |
| 250'000 | 22.7% | 17.6–23.6% | 25.8% |
| 275'000 | 23.6% | 18.4–24.5% | 26.8% |
| 300'000 | 24.4% | 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 1991–20201'119 mm
9.6 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
652 m
Mean elevation
538 m
Relief
218 m
Mean slope
11.1°
Flat share
26.1%
South-facing
18.0%
Above 2000 m
0.0%
Relief 218 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
28.5 GWh/yr
Roofs + façades
37.1 GWh/yr
≈ households powered
6'300
Per inhabitant
7'494 kWh/yr
29 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
1.03 %
Second homes
6.6 %
Avg. rooms
3.9
Dwellings
1'747
Built before 194619.5%
Built since 200134.3%
1.03 %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
1'205
Workplaces
228
Services share
57.7 %
Jobs by sector: Primary 73 (6.1%) · Secondary 437 (36.3%) · Tertiary 695 (57.7%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
30
Organic share
10 %
Farmland
439 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 municipalities3'807 #68 AG · #585 CHGrowing municipalities0.2% #132 AG · #1317 CHShrinking municipalities0.2% #64 AG · #793 CHJobs per resident0.32 #87 AG · #1189 CHFamilies & children20.9% #76 AG · #853 CHAge structure19.1% #116 AG · #1421 CHWomen share50% #59 AG · #949 CHForeign residents33.4% #25 AG · #188 CHPopulation density429/km² #96 AG · #576 CHTax burden13'325 #144 AG · #637 CHTaxes115% #139 AGWarmest municipalities9.6 °C #143 AG · #902 CHSunniest municipalities40.2% #89 AG · #1774 CHRainiest municipalities1'119 mm #51 AG · #989 CHVoter turnout48.7% #173 AG · #1880 CHAgainst Switzerland21.6% #33 AG · #417 CHAligned with Switzerland78.4% #129 AG · #1038 CHSVP strongholds50.3% #37 AG · #232 CHSP strongholds12.7% #98 AG · #1201 CHCentre strongholds6.2% #185 AG · #1666 CHFDP strongholds10% #141 AG · #1396 CHGLP strongholds5.2% #155 AG · #1153 CHGreen strongholds6.2% #74 AG · #1293 CHLargest by area8.9 km² #53 AG · #1061 CHHighest municipalities551 m #22 AG · #996 CHSecond homes6.6% #145 AG · #1892 CHOrganic farming10% #97 AG · #1229 CHBest-connected municipalities72 min #150 AG · #1157 CHRemotest municipalities72 min #47 AG · #966 CHHighest peaks652 m #74 AG · #1357 CHHighest-lying municipalities538 m #42 AG · #1265 CHGreatest vertical range218 m #97 AG · #1279 CHSteepest municipalities11.1° #32 AG · #845 CHSolar potential29 GWh #66 AG · #714 CHSolar potential per capita7'494 kWh #128 AG · #1572 CHCheapest electricity29.86 Rp./kWh #159 AG · #1764 CHMost expensive electricity29.86 Rp./kWh #22 AG · #327 CH
Postal codes (3)
swisstopoLocalities
swisstopo · 3Nearby municipalities
swisstopo- What is the postal code of Unterkulm?
- Unterkulm has 3 postal codes: 5722, 5723, 5726.
- What is the tax rate in Unterkulm?
- The municipal tax multiplier of Unterkulm is 115% (2026); canton AG levies 103%.
- How much tax do you pay in Unterkulm?
- A single person without children pays about 13'325 CHF income tax in Unterkulm on 100'000 CHF gross income (federal, cantonal, municipal), rank 139 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Unterkulm have?
- Unterkulm has 3'807 residents (2025).
- How many foreign residents live in Unterkulm?
- Unterkulm has 1'273 foreign residents, a share of 33.44% (2025).
Map
OpenStreetMapUnterkulm compared with
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