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Switzerland · Canton SO

Winznau

4652
SO CANTON4652
Residents
2'061
Area
3.9 km²
Population density
523 pop./km²
Elevation
403 m a.s.l.
Terrain up to
852 m a.s.l.
Tax multiplier
130%
Postal codes
1

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN

Demographics

BFS · 2025
Women
1'019 49.4%
Men
1'042 50.6%
Children & youth (0–19)
407 19.7%
Swiss citizens
1'689 82.0%
Foreign residents
372 18.1%
Population density
523 pop./km²
0–19 · 407 · 19.7%20–64 · 1'171 · 56.8%65+ · 483 · 23.4%
Foreign residents 18.1%0%64.0%
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026 · swisstopo, retrieved 24.08.2026
14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)FederalAccepted · 52.5% Yes
56.3% YesNo 43.7%
14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»FederalRejected · 45.2% Yes
51.2% YesNo 48.8%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SOAccepted · 58.6% Yes
61.4% YesNo 38.6%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SOAccepted · 58.7% Yes
61.0% YesNo 39.1%
08.03.2026Bundesgesetz über die IndividualbesteuerungFederalAccepted · 54.3% Yes
51.7% YesNo 48.3%
08.03.2026Volksinitiative «200 Franken sind genug! (SRG-Initiative)»FederalRejected · 38.1% Yes
37.6% YesNo 62.4%
08.03.2026Bargeldinitiative und Gegenvorschlag: StichfrageFederalRejected · 37.4% Yes
35.5% YesNo 64.5%
All federal votes
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 31.08.2026

Politics

National Council election 2023
SVP31.3% · strongest party
SVP31.3%
Mitte21.8%
SP15.4%
FDP14.1%
GRÜNE7.9%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 31.08.2026
Municipal tax multiplier130%
Cantonal tax multiplier104%
130%SO range 65%145%
Tax rank 97 of 104 in canton Solothurn
Tax burden
Single, 100'000 CHF gross income
17'356 CHF(17.4%)
Rank 96 of 104 in the canton · 1975 of 2110 in Switzerland
Median canton 16'810 CHF · median Switzerland 15'290 CHF
Cheapest Kammersrohr 13'027 CHF · most expensive Bolken 18'375 CHF
Income tax as % of gross income
0%8%15%23%30%40k50k100k150k200k250k300k
100'000 CHF:17'356 CHF(~17.4%)
WinznauCanton range SolothurnSwitzerland median
Show data table
Gross incomeWinznauSolothurnSwitzerland median
40'0008.2%6.18.8%5.4%
50'00010.7%7.911.4%7.8%
60'00012.7%9.413.5%10.5%
70'00014.2%10.515.1%11.9%
80'00015.4%11.516.3%13.1%
90'00016.3%12.217.3%14.1%
100'00017.4%1318.4%15.3%
110'00018.2%13.819.3%16.3%
120'00019%14.420.1%17.2%
130'00019.8%15.120.9%18.1%
140'00020.6%15.721.8%19%
150'00021.3%16.422.5%19.7%
175'00023.1%17.824.3%21.6%
200'00024.5%19.125.8%23.2%
225'00025.7%20.127%24.6%
250'00026.8%21.128.2%25.8%
275'00027.7%21.929.1%26.8%
300'00028.5%22.529.8%27.4%
2026 · Federal Tax Administration (FTA), retrieved 31.08.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–20209.8 °C
Precipitation 1991–20201'053 mm
9.8 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
852 m
Mean elevation
468 m
Relief
473 m
Mean slope
7.4°
Flat share
46.3%
South-facing
22.5%
Above 2000 m
0.0%
Relief 473 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
15.5 GWh/yr
Roofs + façades
20.2 GWh/yr
≈ households powered
3'400
16 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 31.08.2026

Electricity

ElCom · 2026
Tariff H4
32.34 Rp./kWh
Energy
15.2 Rp./kWh
Grid usage
12.62 Rp./kWh
Levies + grid surcharge
3.45 Rp./kWh
32.34 Rp./kWh9.6443.61
Canton median 30.42 Rp./kWhSwiss median 27.7 Rp./kWh
Network operator Aare Versorgungs AG (AVAG)
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.

2026 · Federal Electricity Commission (ElCom), retrieved 28.08.2026
Vacancy rate
1.26 %
Avg. rooms
4
Dwellings
1'032
Built before 194619.6%
Built since 200122.5%
1.26 %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 31.08.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026

Accessibility

ARE · NPVM
Major centrePT 58 min · Car 54 min
AgglomerationPT 18 min · Car 11 min
Remoteness 76/104 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 28.08.2026

Municipality

Wikidata · CC0
Wikidata · continuously updated, retrieved 31.08.2026

Localities

swisstopo · 1
What is the postal code of Winznau?
The postal code of Winznau is 4652.
What is the tax rate in Winznau?
The municipal tax multiplier of Winznau is 130% (2026); canton SO levies 104%.
How much tax do you pay in Winznau?
A single person without children pays about 17'356 CHF income tax in Winznau on 100'000 CHF gross income (federal, cantonal, municipal), rank 96 of 104 in canton SO. Source: ESTV (2026).
How many residents does Winznau have?
Winznau has 2'061 residents (2025).
How many foreign residents live in Winznau?
Winznau has 372 foreign residents, a share of 18.05% (2025).

Map

OpenStreetMap