Demographics
BFS · 2025Women
681 48.1%
Men
735 51.9%
Children & youth (0–19)
184 13.0%
Swiss citizens
1'113 78.6%
Foreign residents
303 21.4%
Population density
256 pop./km²
0–19 · 184 · 13.0%20–64 · 883 · 62.4%65+ · 349 · 24.6%
Foreign residents 21.4%0%64.0%
Population change 2025: +2 (+0.1%) · 11 births · 14 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
28.2% YesNo 71.8%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Kulm: 41.0% Yes
37.7% YesNo 62.3%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Kulm: 61.0% Yes
57.7% YesNo 42.3%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Kulm: 66.5% Yes
57.5% YesNo 42.5%
14.06.2026Aargauische Volksinitiative "Bildungsqualität sichern – JETZT!" vom 28. August 2024Cantonal AG● Rejected · 42.6% YesDistrict Bezirk Kulm: 36.9% Yes
32.5% YesNo 67.5%
14.06.2026Verkehrsinfrastruktur-Entwicklung Raum Suhr (VERAS); Verpflichtungskredit vom 16. Dezember 2025Cantonal AG● Accepted · 54.3% YesDistrict Bezirk Kulm: 65.8% Yes
59.2% YesNo 40.9%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Kulm: 42.2% Yes
46.8% YesNo 53.2%
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 Kulm: 17.3% Yes
17.3% YesNo 82.7%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Kulm: 51.6% Yes
46.0% YesNo 54.0%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Kulm: 48.0% Yes
38.9% YesNo 61.1%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP38.3% · strongest party
SVP38.3%
FDP18.8%
SP13.4%
GRÜNE8.3%
Mitte8.2%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier95%
Cantonal tax multiplier103%
95%AG range 48%127%
Tax rank 32 of 196 in canton AargauTax burden
Single, 100'000 CHF gross income
12'259 CHF(12.3%)
Rank 30 of 196 in the canton · 344 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:12'259 CHF(~12.3%)
BirrwilCanton range AargauSwitzerland median
Show data table
| Gross income | Birrwil | Aargau | Switzerland median |
|---|---|---|---|
| 40'000 | 4.9% | 3.8–5.6% | 5.4% |
| 50'000 | 6.7% | 5.2–7.7% | 7.8% |
| 60'000 | 8.1% | 6.4–9.3% | 10.5% |
| 70'000 | 9.4% | 7.4–10.7% | 11.9% |
| 80'000 | 10.4% | 8.2–11.9% | 13.1% |
| 90'000 | 11.2% | 8.9–12.8% | 14.1% |
| 100'000 | 12.3% | 9.8–14% | 15.3% |
| 110'000 | 13.2% | 10.5–14.9% | 16.3% |
| 120'000 | 13.9% | 11.2–15.8% | 17.2% |
| 130'000 | 14.6% | 11.7–16.5% | 18.1% |
| 140'000 | 15.3% | 12.4–17.3% | 19% |
| 150'000 | 16% | 13–18% | 19.7% |
| 175'000 | 17.5% | 14.4–19.7% | 21.6% |
| 200'000 | 18.9% | 15.5–21.1% | 23.2% |
| 225'000 | 20.1% | 16.6–22.4% | 24.6% |
| 250'000 | 21.2% | 17.6–23.6% | 25.8% |
| 275'000 | 22.1% | 18.4–24.5% | 26.8% |
| 300'000 | 22.8% | 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 1991–20201'098 mm
9.7 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
770 m
Mean elevation
546 m
Relief
322 m
Mean slope
7.5°
Flat share
45.2%
South-facing
3.8%
Above 2000 m
0.0%
Relief 322 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
11.6 GWh/yr
Roofs + façades
15.1 GWh/yr
≈ households powered
2'600
Per inhabitant
8'206 kWh/yr
12 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
26.38 Rp./kWh
Energy
11.2 Rp./kWh
Grid usage
11.55 Rp./kWh
Levies + grid surcharge
2.3 Rp./kWh
26.38 Rp./kWh10.5645.88
Canton median 26.88 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator EWS 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
1.01 %
Second homes
10.6 %
Avg. rooms
3.9
Dwellings
794
Built before 194634.1%
Built since 200133.5%
1.01 %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
204
Workplaces
91
Services share
80.4 %
Jobs by sector: Primary 18 (8.8%) · Secondary 22 (10.8%) · Tertiary 164 (80.4%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
8
Organic share
0 %
Farmland
193 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 municipalities1'416 #139 AG · #1214 CHGrowing municipalities0.1% #134 AG · #1329 CHShrinking municipalities0.1% #63 AG · #780 CHJobs per resident0.14 #191 AG · #2019 CHFamilies & children13% #196 AG · #2049 CHAge structure24.6% #14 AG · #448 CHWomen share48.1% #172 AG · #1850 CHForeign residents21.4% #96 AG · #751 CHPopulation density256/km² #134 AG · #870 CHTax burden12'259 #30 AG · #344 CHTaxes95% #32 AGWarmest municipalities9.7 °C #117 AG · #819 CHSunniest municipalities40.5% #37 AG · #1616 CHRainiest municipalities1'098 mm #85 AG · #1119 CHVoter turnout59.7% #44 AG · #622 CHAgainst Switzerland14.9% #83 AG · #897 CHAligned with Switzerland85.1% #82 AG · #563 CHSVP strongholds38.3% #129 AG · #751 CHSP strongholds13.4% #86 AG · #1125 CHCentre strongholds8.2% #155 AG · #1419 CHFDP strongholds18.8% #7 AG · #539 CHGLP strongholds6% #130 AG · #979 CHGreen strongholds8.3% #22 AG · #829 CHLargest by area5.5 km² #107 AG · #1474 CHHighest municipalities600 m #9 AG · #824 CHSecond homes10.6% #32 AG · #1109 CHOrganic farming0% #165 AG · #1860 CHBest-connected municipalities71 min #140 AG · #1119 CHRemotest municipalities71 min #54 AG · #1006 CHHighest peaks770 m #21 AG · #1041 CHHighest-lying municipalities546 m #37 AG · #1231 CHGreatest vertical range322 m #32 AG · #955 CHSteepest municipalities7.5° #89 AG · #1167 CHSolar potential12 GWh #150 AG · #1436 CHSolar potential per capita8'206 kWh #100 AG · #1419 CHCheapest electricity26.38 Rp./kWh #59 AG · #914 CHMost expensive electricity26.38 Rp./kWh #138 AG · #1193 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Birrwil?
- The postal code of Birrwil is 5708.
- What is the tax rate in Birrwil?
- The municipal tax multiplier of Birrwil is 95% (2026); canton AG levies 103%.
- How much tax do you pay in Birrwil?
- A single person without children pays about 12'259 CHF income tax in Birrwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 30 of 196 in canton AG. Source: ESTV (2026).
- How many residents does Birrwil have?
- Birrwil has 1'416 residents (2025).
- How many foreign residents live in Birrwil?
- Birrwil has 303 foreign residents, a share of 21.4% (2025).
Map
OpenStreetMapBirrwil compared with
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