Lahti
- 📍 Location: Päijät-Häme region,
Lahti sub-region - 👥 Population (municipality): 121,832 (Dec 31, 2025)
- 🏛️ Founded:
- 📏 Area: 459.6 km² (land area)
- ⛰️ Elevation: 122 m a.s.l.
- ⏰ Time zone: EET (UTC +2, DST EEST +3)
- 💰 Currency: Euro (EUR)
- 🧑🤝🧑 Demonym: lahtelainen
Answers to frequently asked questions
What is the population of Lahti?
The population of Lahti was 121,832 on Dec 31, 2025 (Statistics Finland), a change of +1.5% since 2020.
Which region is Lahti in?
Lahti is in the Päijät-Häme region, Lahti sub-region.
Is Lahti a city?
Yes, Lahti has city status.
What are the official languages of Lahti?
Official language: Finnish (a monolingual Finnish-speaking municipality). Swedish speakers make up 0.5% and speakers of other languages 11.0% of residents (Dec 31, 2025).
How many businesses are there in Lahti?
Lahti had 10,187 business establishments in 2024, including 781 retail outlets (Statistics Finland).
How large is Lahti?
The land area is 459.6 km² and the population density 265.1 residents per km² (Dec 31, 2025).
How many people in Lahti live in built-up areas?
97.7% of residents lived in built-up areas (taajama) in 2024; there are 3 such areas (Statistics Finland).