Olten Population 2026
Olten has a population of 18,362, making it the #47 biggest city in 🇨🇭 Switzerland, located in Solothurn. Roughly 0.2% of Switzerland's population lives here. It is about 23× smaller than Zürich, the country's biggest city.
Population (city proper)
18,362
Rank in Switzerland
#47
Coordinates
47.35°N, 7.90°E
~406 m elevation · Europe/Zurich
Distance to capital (Bern)
56 km
35 miles, straight line
Other big cities in Solothurn
Cities near Olten
FAQ
What is the population of Olten?
Olten has a population of 18,362 (city proper, latest official figure via GeoNames), making it the #47 biggest city in Switzerland.
What region is Olten in?
Olten is located in Solothurn, Switzerland.
Is Olten the capital of Switzerland?
No, the capital of Switzerland is Bern, about 56 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
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