Demographics
BFS · 2025Women
229 50.8%
Men
222 49.2%
Children & youth (0–19)
77 17.1%
Swiss citizens
417 92.5%
Foreign residents
34 7.5%
Population density
94 pop./km²
0–19 · 77 · 17.1%20–64 · 270 · 59.9%65+ · 104 · 23.1%
Foreign residents 7.5%0%64.0%
Population change 2025: +13 (+3%) · 2 births · 2 deaths · net migration +8
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 Gösgen: 26.4% Yes
30.3% YesNo 69.7%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Gösgen: 29.0% Yes
21.5% YesNo 78.5%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Gösgen: 56.5% Yes
46.6% YesNo 53.4%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Gösgen: 53.3% Yes
45.8% YesNo 54.2%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Gösgen: 58.9% Yes
58.5% YesNo 41.5%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Gösgen: 59.1% Yes
58.5% YesNo 41.5%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Gösgen: 50.6% Yes
51.5% YesNo 48.5%
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 Gösgen: 23.5% Yes
28.4% YesNo 71.6%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Gösgen: 41.8% Yes
37.0% YesNo 63.0%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Gösgen: 39.0% Yes
34.4% YesNo 65.6%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP23.6% · strongest party
SVP23.6%
SP17.2%
FDP15.6%
Mitte15.0%
GRÜNE11.7%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier122%
Cantonal tax multiplier104%
122%SO range 65%145%
Tax rank 53 of 104 in canton SolothurnTax burden
Single, 100'000 CHF gross income
16'840 CHF(16.8%)
Rank 58 of 104 in the canton · 1765 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
100'000 CHF:16'840 CHF(~16.8%)
WisenCanton range SolothurnSwitzerland median
Show data table
| Gross income | Wisen | Solothurn | Switzerland median |
|---|---|---|---|
| 40'000 | 8% | 6.1–8.8% | 5.4% |
| 50'000 | 10.4% | 7.9–11.4% | 7.8% |
| 60'000 | 12.3% | 9.4–13.5% | 10.5% |
| 70'000 | 13.8% | 10.5–15.1% | 11.9% |
| 80'000 | 14.9% | 11.5–16.3% | 13.1% |
| 90'000 | 15.8% | 12.2–17.3% | 14.1% |
| 100'000 | 16.8% | 13–18.4% | 15.3% |
| 110'000 | 17.7% | 13.8–19.3% | 16.3% |
| 120'000 | 18.4% | 14.4–20.1% | 17.2% |
| 130'000 | 19.2% | 15.1–20.9% | 18.1% |
| 140'000 | 20% | 15.7–21.8% | 19% |
| 150'000 | 20.7% | 16.4–22.5% | 19.7% |
| 175'000 | 22.4% | 17.8–24.3% | 21.6% |
| 200'000 | 23.8% | 19.1–25.8% | 23.2% |
| 225'000 | 25.1% | 20.1–27% | 24.6% |
| 250'000 | 26.1% | 21.1–28.2% | 25.8% |
| 275'000 | 27% | 21.9–29.1% | 26.8% |
| 300'000 | 27.7% | 22.5–29.8% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–20208.7 °C
Precipitation 1991–20201'126 mm
8.7 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
989 m
Mean elevation
759 m
Relief
375 m
Mean slope
16.9°
Flat share
4.1%
South-facing
28.0%
Above 2000 m
0.0%
Relief 375 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
4.9 GWh/yr
Roofs + façades
6.6 GWh/yr
≈ households powered
1'100
Per inhabitant
10'843 kWh/yr
5 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
31.74 Rp./kWh
Energy
13.45 Rp./kWh
Grid usage
13.78 Rp./kWh
Levies + grid surcharge
3.45 Rp./kWh
31.74 Rp./kWh10.5645.88
Canton median 28.51 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Primeo Netz 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 300606 CHF/mo
Ø premium in canton Solothurn424 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 Solothurn (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
0.86 %
Second homes
13.3 %
Avg. rooms
4.4
Dwellings
232
Built before 194636.2%
Built since 200115.5%
0.86 %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
104
Workplaces
33
Services share
67.3 %
Jobs by sector: Primary 27 (26.0%) · Secondary 7 (6.7%) · Tertiary 70 (67.3%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
12
Organic share
25 %
Farmland
249 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 municipalities451 #96 SO · #1850 CHGrowing municipalities3% #5 SO · #163 CHShrinking municipalities3% #100 SO · #1946 CHJobs per resident0.23 #72 SO · #1629 CHFamilies & children17.1% #93 SO · #1804 CHAge structure23.1% #43 SO · #650 CHWomen share50.8% #26 SO · #508 CHForeign residents7.5% #94 SO · #1893 CHPopulation density94/km² #91 SO · #1511 CHTax burden16'840 #58 SO · #1765 CHTaxes122% #53 SOWarmest municipalities8.7 °C #92 SO · #1510 CHSunniest municipalities40.3% #57 SO · #1682 CHRainiest municipalities1'126 mm #42 SO · #949 CHVoter turnout56.9% #29 SO · #961 CHSVP strongholds23.6% #92 SO · #1628 CHSP strongholds17.2% #33 SO · #718 CHCentre strongholds15% #70 SO · #825 CHFDP strongholds15.6% #56 SO · #771 CHGLP strongholds8.4% #7 SO · #517 CHGreen strongholds11.7% #17 SO · #378 CHLargest by area4.8 km² #69 SO · #1574 CHHighest municipalities682 m #7 SO · #632 CHSecond homes13.3% #11 SO · #746 CHOrganic farming25% #19 SO · #446 CHBest-connected municipalities71 min #78 SO · #1111 CHRemotest municipalities71 min #24 SO · #998 CHHighest peaks989 m #22 SO · #738 CHHighest-lying municipalities759 m #11 SO · #659 CHGreatest vertical range375 m #44 SO · #856 CHSteepest municipalities16.9° #17 SO · #493 CHSolar potential5 GWh #97 SO · #1921 CHSolar potential per capita10'843 kWh #30 SO · #932 CHCheapest electricity31.74 Rp./kWh #97 SO · #1982 CHMost expensive electricity31.74 Rp./kWh #9 SO · #125 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Wisen?
- The postal code of Wisen is 4634.
- What is the tax rate in Wisen?
- The municipal tax multiplier of Wisen is 122% (2026); canton SO levies 104%.
- How much tax do you pay in Wisen?
- A single person without children pays about 16'840 CHF income tax in Wisen on 100'000 CHF gross income (federal, cantonal, municipal), rank 58 of 104 in canton SO. Source: ESTV (2026).
- How many residents does Wisen have?
- Wisen has 451 residents (2025).
- How many foreign residents live in Wisen?
- Wisen has 34 foreign residents, a share of 7.54% (2025).
Map
OpenStreetMapWisen compared with
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