Dulliken: population and statistics
Dulliken has a population of 5,489 (2025) across 6.0 km², or 909 people per km². It ranks 386 of 2,115 municipalities by population. Its population is growing: +12.1% between 2015 and 2025.
- 5,489 residents
- 6.0 km²
- 909 people/km²
- 394 m
Key points
Among the 106 municipalities in Solothurn, Dulliken ranks No. 14 by population.
Share of foreign nationals: 46.3% in Dulliken, compared with an average of 25.9% in Solothurn and 27.7% nationally.
Installed photovoltaic capacity per 1,000 inhabitants: 551.2 kW in Dulliken, compared with an average of 1,095 kW in Solothurn and 919.4 kW nationally.
A 1 kWp solar panel tilted at 37° generates about 1,143 kWh a year here.
Dulliken in numbers
Where is Dulliken?
Population of Dulliken over time
Dulliken had 4,897 residents in 2015 and 5,489 in 2025.
| Year | Population |
|---|---|
| 2020 | 5,083 |
| 2021 | 5,183 |
| 2022 | 5,224 |
| 2023 | 5,396 |
| 2024 | 5,450 |
| 2025 | 5,489 |
Did you know?
- Number 1 in Solothurn for “Share of foreign nationals”.
- “Share of foreign nationals”: higher than in 99% of municipalities.
- “Installed photovoltaic capacity per 1,000 inhabitants”: lower than in 90% of municipalities.
- Its area is roughly equal to 846 football pitches.
- Its population density is 3.9 times the national average.
- The nearest municipality is Starrkirch-Wil, 1.5 km away.
- The nearest more populous municipality is Olten (19,265 residents), 2.9 km away.
All indicators for Dulliken
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Dulliken | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 21.1% | 21.7% | 20.7% | ranked 833 of 1,811 |
Housing
| Indicator | Dulliken | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,652 | 148,900 | 4,927,050 | ranked 443 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 13.9% | 22.0% | 23.3% | ranked 1,413 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 18.6% | 21.9% | 25.3% | ranked 1,340 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 73.5% | 70.1% | 69.5% | ranked 643 of 1,806 |
Energy
| Indicator | Dulliken | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 71.1% | 72.7% | 53.5% | ranked 322 of 1,806 | |
| Heat pumps as main heating (2026) | 14.8% | 11.4% | 13.7% | ranked 842 of 1,806 | |
| Wood heating systems (2026) | 4.7% | 8.1% | 12.4% | ranked 1,468 of 1,806 | |
| District heating (2026) | 2.2% | 2.7% | 1.4% | ranked 751 of 1,806 | |
| Photovoltaic installations (2026) | 88 | 11,211 | 329,600 | ranked 1,184 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 551.2 kW | 1,095 kW | 1,134 kW | ranked 1,629 of 1,806 | |
| Rooftop solar electricity potential (2026) | 39.0 GWh/year | 2,373 GWh/year | 64,783 GWh/year | ranked 482 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 7,114 kWh/inh. | 8,138 kWh/inh. | 9,356 kWh/inh. | ranked 1,368 of 1,810 |
Economy
| Indicator | Dulliken | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 255 | 18,596 | 728,011 | ranked 604 of 2,112 | |
| Entities listed in the commercial register (2026) | 303 | 18,362 | 762,757 | ranked 507 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 55.2 | 63.0 | 64.9 | ranked 1,336 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 66.0% | 65.9% | 65.7% | ranked 868 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 29.4% | 29.3% | 29.0% | ranked 865 of 1,808 |
Employment
| Indicator | Dulliken | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 1,521 | 151,633 | 5,679,518 | ranked 610 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 277.1 | 520.0 | 362.9 | ranked 1,256 of 1,810 | |
| Share of jobs in services (2024) | 69.0% | 67.4% | 63.6% | ranked 695 of 1,804 | |
| Share of jobs in industry and construction (2024) | 29.0% | 27.9% | 24.2% | ranked 668 of 1,776 |
Society
| Indicator | Dulliken | Solothurn | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 46.3% | 25.9% | 18.9% | ranked 21 of 1,811 |
Sunshine and temperatures: Dulliken
Frequently asked questions
What is the population of Dulliken?
Dulliken has 5,489 residents (2025), ranking 386 of 2,115 municipalities.
How big is Dulliken?
Dulliken covers 6.0 km², with a density of 909 people per km².
Is the population of Dulliken growing?
Between 2015 and 2025, the population of Dulliken went from 4,897 to 5,489, a change of +12.1%.
Where is Dulliken?
Dulliken is in Solothurn. It belongs to Bezirk Olten (district). Latitude 47.352, longitude 7.946.
Share of foreign nationals: what is the figure for Dulliken?
In Dulliken, “Share of foreign nationals” stands at 46.3% (2025), ranking 21 of 1,811 municipalities; the national median is 18.9%.
Installed photovoltaic capacity per 1,000 inhabitants: what is the figure for Dulliken?
In Dulliken, “Installed photovoltaic capacity per 1,000 inhabitants” stands at 551.2 kW (2026), ranking 1,629 of 1,806 municipalities; the national median is 1,134 kW.
How much electricity does a solar panel produce in Dulliken?
In Dulliken, a 1 kWp south-facing system tilted at 37° produces about 1,143 kWh a year.
Which municipalities border Dulliken?
The nearest to Dulliken are Starrkirch-Wil (1.5 km), Obergösgen (1.6 km), Winznau (1.7 km), Däniken (2.8 km), Olten (2.9 km).