Demographics
BFS · 2025Women
2'718 49.5%
Men
2'771 50.5%
Children & youth (0–19)
1'074 19.6%
Swiss citizens
2'946 53.7%
Foreign residents
2'543 46.3%
Population density
909 pop./km²
0–19 · 1'074 · 19.6%20–64 · 3'255 · 59.3%65+ · 1'160 · 21.1%
Foreign residents 46.3%0%64.0%
Population change 2025: +39 (+0.7%) · 56 births · 58 deaths · net migration +47
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 Olten: 27.9% Yes
27.3% YesNo 72.7%
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict Bezirk Olten: 25.3% Yes
31.2% YesNo 68.8%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict Bezirk Olten: 53.2% Yes
53.7% YesNo 46.3%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict Bezirk Olten: 46.7% Yes
53.9% YesNo 46.1%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% YesDistrict Bezirk Olten: 62.8% Yes
58.1% YesNo 41.9%
14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% YesDistrict Bezirk Olten: 62.8% Yes
58.3% YesNo 41.7%
08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict Bezirk Olten: 56.6% Yes
51.9% YesNo 48.1%
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 Olten: 28.5% Yes
23.4% YesNo 76.6%
08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict Bezirk Olten: 36.7% Yes
42.8% YesNo 57.2%
08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict Bezirk Olten: 35.8% Yes
43.3% YesNo 56.7%
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026
Politics
National Council election 2023SVP31.6% · strongest party
SVP31.6%
SP21.6%
Mitte15.8%
FDP13.7%
GRÜNE7.5%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Taxes 2026
ESTVMunicipal tax multiplier119%
Cantonal tax multiplier104%
119%SO range 65%145%
Tax rank 43 of 104 in canton SolothurnTax burden
Single, 100'000 CHF gross income
16'610 CHF(16.6%)
Rank 43 of 104 in the canton · 1650 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:16'610 CHF(~16.6%)
DullikenCanton range SolothurnSwitzerland median
Show data table
| Gross income | Dulliken | Solothurn | Switzerland median |
|---|---|---|---|
| 40'000 | 7.8% | 6.1–8.8% | 5.4% |
| 50'000 | 10.2% | 7.9–11.4% | 7.8% |
| 60'000 | 12.1% | 9.4–13.5% | 10.5% |
| 70'000 | 13.6% | 10.5–15.1% | 11.9% |
| 80'000 | 14.7% | 11.5–16.3% | 13.1% |
| 90'000 | 15.6% | 12.2–17.3% | 14.1% |
| 100'000 | 16.6% | 13–18.4% | 15.3% |
| 110'000 | 17.5% | 13.8–19.3% | 16.3% |
| 120'000 | 18.2% | 14.4–20.1% | 17.2% |
| 130'000 | 19% | 15.1–20.9% | 18.1% |
| 140'000 | 19.8% | 15.7–21.8% | 19% |
| 150'000 | 20.5% | 16.4–22.5% | 19.7% |
| 175'000 | 22.2% | 17.8–24.3% | 21.6% |
| 200'000 | 23.6% | 19.1–25.8% | 23.2% |
| 225'000 | 24.8% | 20.1–27% | 24.6% |
| 250'000 | 25.9% | 21.1–28.2% | 25.8% |
| 275'000 | 26.7% | 21.9–29.1% | 26.8% |
| 300'000 | 27.4% | 22.5–29.8% | 27.4% |
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026
Climate
MeteoSwiss 1 km grid · 1991–2020Annual mean temperature 1991–20209.3 °C
Precipitation 1991–20201'071 mm
9.3 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026
Terrain
swisstopo · DHM 40 mHighest point
703 m
Mean elevation
486 m
Relief
325 m
Mean slope
8.4°
Flat share
44.2%
South-facing
4.1%
Above 2000 m
0.0%
Relief 325 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
39.1 GWh/yr
Roofs + façades
49.9 GWh/yr
≈ households powered
8'700
Per inhabitant
7'114 kWh/yr
39 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
31.21 Rp./kWh
Energy
13.45 Rp./kWh
Grid usage
13.78 Rp./kWh
Levies + grid surcharge
2.91 Rp./kWh
31.21 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
4.11 %
Second homes
8.5 %
Avg. rooms
3.7
Dwellings
2'606
Built before 194614.2%
Built since 200117.2%
4.11 %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
1'521
Workplaces
255
Services share
69 %
Jobs by sector: Primary 30 (2.0%) · Secondary 441 (29.0%) · Tertiary 1'050 (69.0%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026
Agriculture
BFS · 2025Farms
10
Organic share
0 %
Farmland
229 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 municipalities5'489 #14 SO · #385 CHGrowing municipalities0.7% #44 SO · #955 CHShrinking municipalities0.7% #61 SO · #1150 CHJobs per resident0.28 #62 SO · #1383 CHFamilies & children19.6% #53 SO · #1273 CHAge structure21.1% #68 SO · #1027 CHWomen share49.5% #63 SO · #1268 CHForeign residents46.3% #1 SO · #21 CHPopulation density909/km² #13 SO · #262 CHTax burden16'610 #43 SO · #1650 CHTaxes119% #43 SOWarmest municipalities9.3 °C #63 SO · #1151 CHSunniest municipalities39.9% #99 SO · #1931 CHRainiest municipalities1'071 mm #83 SO · #1269 CHVoter turnout47.4% #97 SO · #1951 CHAgainst Switzerland10.8% #52 SO · #1173 CHAligned with Switzerland89.2% #27 SO · #294 CHSVP strongholds31.6% #56 SO · #1172 CHSP strongholds21.6% #14 SO · #352 CHCentre strongholds15.8% #67 SO · #775 CHFDP strongholds13.7% #72 SO · #960 CHGLP strongholds4.2% #78 SO · #1361 CHGreen strongholds7.5% #43 SO · #978 CHLargest by area6 km² #51 SO · #1396 CHHighest municipalities436 m #79 SO · #1652 CHSecond homes8.5% #68 SO · #1500 CHOrganic farming0% #91 SO · #1775 CHBest-connected municipalities58 min #30 SO · #711 CHRemotest municipalities58 min #79 SO · #1397 CHHighest peaks703 m #49 SO · #1199 CHHighest-lying municipalities486 m #63 SO · #1503 CHGreatest vertical range325 m #47 SO · #950 CHSteepest municipalities8.4° #52 SO · #1075 CHSolar potential39 GWh #16 SO · #481 CHSolar potential per capita7'114 kWh #85 SO · #1660 CHCheapest electricity31.21 Rp./kWh #76 SO · #1919 CHMost expensive electricity31.21 Rp./kWh #32 SO · #171 CH
Postal codes (2)
swisstopoLocalities
swisstopo · 2Nearby municipalities
swisstopo- What is the postal code of Dulliken?
- Dulliken has 2 postal codes: 4657, 5746.
- What is the tax rate in Dulliken?
- The municipal tax multiplier of Dulliken is 119% (2026); canton SO levies 104%.
- How much tax do you pay in Dulliken?
- A single person without children pays about 16'610 CHF income tax in Dulliken on 100'000 CHF gross income (federal, cantonal, municipal), rank 43 of 104 in canton SO. Source: ESTV (2026).
- How many residents does Dulliken have?
- Dulliken has 5'489 residents (2025).
- How many foreign residents live in Dulliken?
- Dulliken has 2'543 foreign residents, a share of 46.33% (2025).
Map
OpenStreetMapDulliken compared with
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- Dulliken vs. Solothurn
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