Seinäjoki
- 📍 Location: South Ostrobothnia region,
Seinäjoki sub-region - 🌊 Sea or lake: Seinäjoki
- 👥 Population (municipality): 67,283 (Dec 31, 2025)
- 🏛️ Founded:
- 📏 Area: 1,431.6 km² (land area)
- ⛰️ Elevation: 75 m a.s.l.
- ⏰ Time zone: EET (UTC +2, DST EEST +3)
- 💰 Currency: Euro (EUR)
- 🧑🤝🧑 Demonym: seinäjokinen
Answers to frequently asked questions
What is the population of Seinäjoki?
The population of Seinäjoki was 67,283 on Dec 31, 2025 (Statistics Finland), a change of +4.9% since 2020.
Which region is Seinäjoki in?
Seinäjoki is in the South Ostrobothnia region, Seinäjoki sub-region.
Is Seinäjoki a city?
Yes, Seinäjoki has city status.
What are the official languages of Seinäjoki?
Official language: Finnish (a monolingual Finnish-speaking municipality). Swedish speakers make up 0.2% and speakers of other languages 6.1% of residents (Dec 31, 2025).
How many businesses are there in Seinäjoki?
Seinäjoki had 7,413 business establishments in 2024, including 573 retail outlets (Statistics Finland).
How large is Seinäjoki?
The land area is 1,431.6 km² and the population density 47.0 residents per km² (Dec 31, 2025).
How many people in Seinäjoki live in built-up areas?
92.1% of residents lived in built-up areas (taajama) in 2024; there are 9 such areas (Statistics Finland).