Korsholm (Mustasaari)
- 📍 Location: Ostrobothnia region,
Vaasa sub-region - 👥 Population (municipality): 19,792 (Dec 31, 2025)
- 📏 Area: 849.5 km² (land area)
- ⏰ Time zone: EET (UTC +2, DST EEST +3)
- 💰 Currency: Euro (EUR)
- 🧑🤝🧑 Demonym: mustasaarelainen / korsholmare
Answers to frequently asked questions
What is the population of Korsholm?
The population of Korsholm was 19,792 on Dec 31, 2025 (Statistics Finland), a change of +1.7% since 2020.
Which region is Korsholm in?
Korsholm is in the Ostrobothnia region, Vaasa sub-region.
Is Korsholm a city?
No, Korsholm is a municipality without city status.
What are the official languages of Korsholm?
Official language: Swedish and Finnish (a bilingual municipality with a Swedish-speaking majority). Swedish speakers make up 67.9% and speakers of other languages 3.6% of residents (Dec 31, 2025).
How many businesses are there in Korsholm?
Korsholm had 2,512 business establishments in 2024, including 125 retail outlets (Statistics Finland).
How large is Korsholm?
The land area is 849.5 km² and the population density 23.3 residents per km² (Dec 31, 2025).
How many people in Korsholm live in built-up areas?
80.9% of residents lived in built-up areas (taajama) in 2024; there are 11 such areas (Statistics Finland).