Demographics
BFS · 2025Women
524 49.1%
Men
544 50.9%
Children & youth (0–19)
163 15.3%
Swiss citizens
934 87.5%
Foreign residents
134 12.6%
Population density
425 pop./km²
0–19 · 163 · 15.3%20–64 · 621 · 58.1%65+ · 284 · 26.6%
Foreign residents 12.6%0%64.0%
Population change 2025: −3 (−0.3%) · 8 births · 9 deaths · net migration −3
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 Lebern: 24.2% Yes
19.8% YesNo 80.2%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Lebern: 25.8% Yes
17.0% YesNo 83.1%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Lebern: 56.1% Yes
38.9% YesNo 61.2%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Lebern: 51.8% Yes
38.1% YesNo 61.9%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Lebern: 58.3% Yes
55.9% YesNo 44.1%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Lebern: 58.3% Yes
55.4% YesNo 44.6%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Lebern: 55.1% Yes
61.7% YesNo 38.3%
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 Lebern: 23.1% Yes
19.1% YesNo 80.9%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Lebern: 40.7% Yes
37.2% YesNo 62.8%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Lebern: 38.2% Yes
25.4% YesNo 74.6%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023FDP40.7% · strongest party
FDP40.7%
SVP19.3%
Mitte12.6%
SP9.6%
GRÜNE8.7%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier68%
Cantonal tax multiplier104%
68%SO range 65%145%
Tax rank 2 of 104 in canton SolothurnTax burden
Single, 100'000 CHF gross income
13'227 CHF(13.2%)
Rank 2 of 104 in the canton · 595 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:13'227 CHF(~13.2%)
Feldbrunnen-St. NiklausCanton range SolothurnSwitzerland median
Show data table
| Gross income | Feldbrunnen-St. Niklaus | Solothurn | Switzerland median |
|---|---|---|---|
| 40'000 | 6.2% | 6.1–8.8% | 5.4% |
| 50'000 | 8% | 7.9–11.4% | 7.8% |
| 60'000 | 9.5% | 9.4–13.5% | 10.5% |
| 70'000 | 10.7% | 10.5–15.1% | 11.9% |
| 80'000 | 11.6% | 11.5–16.3% | 13.1% |
| 90'000 | 12.4% | 12.2–17.3% | 14.1% |
| 100'000 | 13.2% | 13–18.4% | 15.3% |
| 110'000 | 14% | 13.8–19.3% | 16.3% |
| 120'000 | 14.6% | 14.4–20.1% | 17.2% |
| 130'000 | 15.3% | 15.1–20.9% | 18.1% |
| 140'000 | 16% | 15.7–21.8% | 19% |
| 150'000 | 16.6% | 16.4–22.5% | 19.7% |
| 175'000 | 18.1% | 17.8–24.3% | 21.6% |
| 200'000 | 19.3% | 19.1–25.8% | 23.2% |
| 225'000 | 20.4% | 20.1–27% | 24.6% |
| 250'000 | 21.4% | 21.1–28.2% | 25.8% |
| 275'000 | 22.2% | 21.9–29.1% | 26.8% |
| 300'000 | 22.8% | 22.5–29.8% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–20209.6 °C
Precipitation 1991–20201'215 mm
9.6 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
596 m
Mean elevation
484 m
Relief
170 m
Mean slope
5.5°
Flat share
55.1%
South-facing
25.9%
Above 2000 m
0.0%
Relief 170 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
6.6 GWh/yr
Roofs + façades
9 GWh/yr
≈ households powered
1'500
Per inhabitant
6'142 kWh/yr
7 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
24.79 Rp./kWh
Energy
7.97 Rp./kWh
Grid usage
11.91 Rp./kWh
Levies + grid surcharge
3 Rp./kWh
24.79 Rp./kWh10.5645.88
Canton median 28.51 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator BKW 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 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
2.22 %
Second homes
5.4 %
Avg. rooms
4.3
Dwellings
541
Built before 194612.0%
Built since 200134.9%
2.22 %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
306
Workplaces
99
Services share
85.9 %
Jobs by sector: Primary 7 (2.3%) · Secondary 36 (11.8%) · Tertiary 263 (85.9%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
3
Organic share
0 %
Farmland
68 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 municipalities1'068 #73 SO · #1418 CHGrowing municipalities-0.3% #72 SO · #1559 CHShrinking municipalities-0.3% #33 SO · #553 CHJobs per resident0.29 #60 SO · #1331 CHFamilies & children15.3% #103 SO · #1956 CHAge structure26.6% #11 SO · #260 CHWomen share49.1% #71 SO · #1477 CHForeign residents12.6% #67 SO · #1496 CHPopulation density425/km² #36 SO · #581 CHTax burden13'227 #2 SO · #595 CHTaxes68% #2 SOWarmest municipalities9.6 °C #32 SO · #882 CHSunniest municipalities40.1% #84 SO · #1809 CHRainiest municipalities1'215 mm #18 SO · #666 CHVoter turnout66.6% #3 SO · #142 CHAgainst Switzerland13.7% #34 SO · #1005 CHAligned with Switzerland86.3% #44 SO · #461 CHSVP strongholds19.3% #96 SO · #1815 CHSP strongholds9.6% #77 SO · #1559 CHCentre strongholds12.6% #84 SO · #988 CHFDP strongholds40.7% #2 SO · #17 CHGLP strongholds6.1% #40 SO · #950 CHGreen strongholds8.7% #34 SO · #764 CHLargest by area2.5 km² #92 SO · #1943 CHHighest municipalities452 m #70 SO · #1520 CHSecond homes5.4% #100 SO · #2018 CHOrganic farming0% #84 SO · #1768 CHBest-connected municipalities61 min #42 SO · #813 CHRemotest municipalities61 min #63 SO · #1295 CHHighest peaks596 m #64 SO · #1561 CHHighest-lying municipalities484 m #64 SO · #1511 CHGreatest vertical range170 m #63 SO · #1490 CHSteepest municipalities5.5° #70 SO · #1472 CHSolar potential7 GWh #88 SO · #1790 CHSolar potential per capita6'142 kWh #96 SO · #1814 CHCheapest electricity24.79 Rp./kWh #2 SO · #393 CHMost expensive electricity24.79 Rp./kWh #103 SO · #1714 CH
Postal codes (1)
swisstopoLocalities
swisstopo · 1Nearby municipalities
swisstopo- What is the postal code of Feldbrunnen-St. Niklaus?
- The postal code of Feldbrunnen-St. Niklaus is 4532.
- What is the tax rate in Feldbrunnen-St. Niklaus?
- The municipal tax multiplier of Feldbrunnen-St. Niklaus is 68% (2026); canton SO levies 104%.
- How much tax do you pay in Feldbrunnen-St. Niklaus?
- A single person without children pays about 13'227 CHF income tax in Feldbrunnen-St. Niklaus on 100'000 CHF gross income (federal, cantonal, municipal), rank 2 of 104 in canton SO. Source: ESTV (2026).
- How many residents does Feldbrunnen-St. Niklaus have?
- Feldbrunnen-St. Niklaus has 1'068 residents (2025).
- How many foreign residents live in Feldbrunnen-St. Niklaus?
- Feldbrunnen-St. Niklaus has 134 foreign residents, a share of 12.55% (2025).
Map
OpenStreetMapFeldbrunnen-St. Niklaus compared with
- Feldbrunnen-St. Niklaus vs. Olten
- Feldbrunnen-St. Niklaus vs. Grenchen
- Feldbrunnen-St. Niklaus vs. Solothurn
- Feldbrunnen-St. Niklaus vs. Zuchwil
- Feldbrunnen-St. Niklaus vs. Biberist
- Feldbrunnen-St. Niklaus vs. Derendingen
- Feldbrunnen-St. Niklaus vs. Trimbach
- Feldbrunnen-St. Niklaus vs. Dornach
- Feldbrunnen-St. Niklaus vs. Oensingen
- Feldbrunnen-St. Niklaus vs. Balsthal
- Feldbrunnen-St. Niklaus vs. Olten
- Feldbrunnen-St. Niklaus vs. Grenchen
- Feldbrunnen-St. Niklaus vs. Solothurn
- Feldbrunnen-St. Niklaus vs. Zuchwil
- Feldbrunnen-St. Niklaus vs. Biberist
- Feldbrunnen-St. Niklaus vs. Derendingen
- Feldbrunnen-St. Niklaus vs. Trimbach
- Feldbrunnen-St. Niklaus vs. Dornach
- Feldbrunnen-St. Niklaus vs. Oensingen
- Feldbrunnen-St. Niklaus vs. Balsthal
- Feldbrunnen-St. Niklaus vs. Baden
- Feldbrunnen-St. Niklaus vs. Schwende-Rüte
- Feldbrunnen-St. Niklaus vs. Herisau
- Feldbrunnen-St. Niklaus vs. Bern
- Feldbrunnen-St. Niklaus vs. Allschwil
- Feldbrunnen-St. Niklaus vs. Basel
- Feldbrunnen-St. Niklaus vs. Fribourg
- Feldbrunnen-St. Niklaus vs. Geneva
- Feldbrunnen-St. Niklaus vs. Glarus Nord
- Feldbrunnen-St. Niklaus vs. Chur
- Feldbrunnen-St. Niklaus vs. Delémont
- Feldbrunnen-St. Niklaus vs. Lucerne
- Feldbrunnen-St. Niklaus vs. Neuchâtel
- Feldbrunnen-St. Niklaus vs. Stans
- Feldbrunnen-St. Niklaus vs. Sarnen
- Feldbrunnen-St. Niklaus vs. St. Gallen
- Feldbrunnen-St. Niklaus vs. Schaffhausen
- Feldbrunnen-St. Niklaus vs. Freienbach
- Feldbrunnen-St. Niklaus vs. Frauenfeld
- Feldbrunnen-St. Niklaus vs. Lugano
- Feldbrunnen-St. Niklaus vs. Altdorf
- Feldbrunnen-St. Niklaus vs. Lausanne
- Feldbrunnen-St. Niklaus vs. Sion
- Feldbrunnen-St. Niklaus vs. Zug
- Feldbrunnen-St. Niklaus vs. Zurich