Kajaani Population 2026
Kajaani has a population of 36,458, making it the #33 biggest city in 🇫🇮 Finland, located in Kainuu. Roughly 0.6% of Finland's population lives here. It is about 18× smaller than Helsinki, the country's biggest city.
Population (city proper)
36,458
Rank in Finland
#33
Coordinates
64.23°N, 27.73°E
~145 m elevation · Europe/Helsinki
Distance to capital (Helsinki)
474 km
294 miles, straight line
Cities near Kajaani
- Iisalmi20,330 people · ~79 km away
- Siilinjärvi21,383 people · ~127 km away
- Oulu216,066 people · ~139 km away
- Kuopio125,462 people · ~148 km away
- Ylivieska15,375 people · ~155 km away
- Haukipudas17,298 people · ~155 km away
FAQ
What is the population of Kajaani?
Kajaani has a population of 36,458 (city proper, latest official figure via GeoNames), making it the #33 biggest city in Finland.
What region is Kajaani in?
Kajaani is located in Kainuu, Finland.
Is Kajaani the capital of Finland?
No, the capital of Finland is Helsinki, about 474 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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