Aarau Population 2026
Aarau has a population of 21,503, making it the #35 biggest city in 🇨🇭 Switzerland, located in Aargau. Roughly 0.2% of Switzerland's population lives here. It is about 19× smaller than Zürich, the country's biggest city.
Population (city proper)
21,503
Rank in Switzerland
#35
Coordinates
47.39°N, 8.04°E
~389 m elevation · Europe/Zurich
Distance to capital (Bern)
67 km
42 miles, straight line
Other big cities in Aargau
Cities near Aarau
FAQ
What is the population of Aarau?
Aarau has a population of 21,503 (city proper, latest official figure via GeoNames), making it the #35 biggest city in Switzerland.
What region is Aarau in?
Aarau is located in Aargau, Switzerland.
Is Aarau the capital of Switzerland?
No, the capital of Switzerland is Bern, about 67 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.
← All biggest cities in Switzerland · Switzerland population by year