Demographics
BFS · 2025Women
5'617 49.6%
Men
5'705 50.4%
Children & youth (0–19)
2'094 18.5%
Swiss citizens
7'859 69.4%
Foreign residents
3'463 30.6%
Population density
1'001 pop./km²
0–19 · 2'094 · 18.5%20–64 · 7'147 · 63.1%65+ · 2'081 · 18.4%
Foreign residents 30.6%0%64.0%
Population change 2025: +8 (+0.1%) · 108 births · 93 deaths · net migration −9
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 Lenzburg: 25.6% Yes
31.1% YesNo 68.9%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Lenzburg: 31.6% Yes
19.7% YesNo 80.3%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Lenzburg: 56.9% Yes
48.6% YesNo 51.4%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Lenzburg: 54.0% Yes
36.0% YesNo 64.0%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Lenzburg: 42.3% Yes
50.0% YesNo 50.0%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Lenzburg: 60.2% Yes
57.7% YesNo 42.3%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Lenzburg: 48.8% Yes
56.5% YesNo 43.5%
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 Lenzburg: 22.8% Yes
34.7% YesNo 65.3%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Lenzburg: 44.0% Yes
32.4% YesNo 67.6%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Lenzburg: 37.2% Yes
27.4% YesNo 72.6%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SP23.9% · strongest party
SP23.9%
SVP20.7%
FDP17.3%
GLP12.5%
Mitte9.7%
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 87 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%)
LenzburgCanton range AargauSwitzerland median
Show data table
| Gross income | Lenzburg | 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 1991–20209.9 °C
Precipitation 1991–20201'022 mm
9.9 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
566 m
Mean elevation
433 m
Relief
201 m
Mean slope
5.4°
Flat share
64.5%
South-facing
4.1%
Above 2000 m
0.0%
Relief 201 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
82.7 GWh/yr
Roofs + façades
106.5 GWh/yr
≈ households powered
18'400
Per inhabitant
7'308 kWh/yr
83 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
26.23 Rp./kWh
Energy
12.51 Rp./kWh
Grid usage
8.85 Rp./kWh
Levies + grid surcharge
3 Rp./kWh
26.23 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator SWL 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
0.4 %
Second homes
8.6 %
Avg. rooms
3.5
Dwellings
5'822
Built before 194619.1%
Built since 200139.2%
0.4 %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
10'135
Workplaces
1'038
Services share
76.2 %
Jobs by sector: Primary 20 (0.2%) · Secondary 2'396 (23.6%) · Tertiary 7'719 (76.2%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
9
Organic share
11.1 %
Farmland
182 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 municipalities11'322 #12 AG · #148 CHGrowing municipalities0.1% #140 AG · #1373 CHShrinking municipalities0.1% #56 AG · #738 CHJobs per resident0.9 #8 AG · #116 CHFamilies & children18.5% #161 AG · #1580 CHAge structure18.4% #133 AG · #1572 CHWomen share49.6% #94 AG · #1218 CHForeign residents30.6% #40 AG · #292 CHPopulation density1'001/km² #33 AG · #222 CHTax burden12'792 #83 AG · #469 CHTaxes105% #87 AGWarmest municipalities9.9 °C #79 AG · #622 CHSunniest municipalities40% #146 AG · #1903 CHRainiest municipalities1'022 mm #166 AG · #1531 CHVoter turnout56.9% #75 AG · #965 CHAgainst Switzerland7.8% #151 AG · #1349 CHAligned with Switzerland92.2% #19 AG · #149 CHSVP strongholds20.7% #192 AG · #1756 CHSP strongholds23.9% #6 AG · #222 CHCentre strongholds9.7% #127 AG · #1232 CHFDP strongholds17.3% #13 AG · #632 CHGLP strongholds12.5% #9 AG · #119 CHGreen strongholds9.4% #11 AG · #653 CHLargest by area11.3 km² #33 AG · #875 CHHighest municipalities413 m #121 AG · #1827 CHSecond homes8.6% #73 AG · #1481 CHOrganic farming11.1% #91 AG · #1148 CHBest-connected municipalities52 min #25 AG · #532 CHRemotest municipalities52 min #171 AG · #1582 CHHighest peaks566 m #127 AG · #1661 CHHighest-lying municipalities433 m #127 AG · #1839 CHGreatest vertical range201 m #115 AG · #1363 CHSteepest municipalities5.4° #137 AG · #1497 CHSolar potential83 GWh #9 AG · #133 CHSolar potential per capita7'308 kWh #136 AG · #1616 CHCheapest electricity26.23 Rp./kWh #56 AG · #909 CHMost expensive electricity26.23 Rp./kWh #141 AG · #1198 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Lenzburg?
- The postal code of Lenzburg is 5600.
- What is the tax rate in Lenzburg?
- The municipal tax multiplier of Lenzburg is 105% (2026); canton AG levies 103%.
- How much tax do you pay in Lenzburg?
- A single person without children pays about 12'792 CHF income tax in Lenzburg on 100'000 CHF gross income (federal, cantonal, municipal), rank 77 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Lenzburg have?
- Lenzburg has 11'322 residents (2025).
- How many foreign residents live in Lenzburg?
- Lenzburg has 3'463 foreign residents, a share of 30.59% (2025).
Map
OpenStreetMapLenzburg compared with
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