Kymenlaakso (Kymmenedalen)
- 🏛️ Administrative centre: Kouvola and Kotka
- 🌍 Region: south-eastern Finland,
Gulf of Finland coast - 📍 Location: borders Uusimaa, Päijät-Häme, South Savo and South Karelia;
the Gulf of Finland to the south, the Russian border to the east - 📐 Area: 4,561 km² (land area)
- 👥 Population: 156,198 (Dec 31, 2025)
- ⛰️ Relief: the Kymijoki river valley, coastal archipelago, forests and lakes in the north
- 🗣️ Official language: Finnish and Swedish (1 bilingual municipalities)
- ⏰ Time zone: EET (UTC +2, DST EEST +3)
- 💰 Currency: Euro (EUR)
- 🌧️ Climate: humid continental (Dfb)
Answers to frequently asked questions
What is the population of Kymenlaakso?
The population of Kymenlaakso was 156,198 on Dec 31, 2025 (Statistics Finland), a change of -4.1% since 2020.
What is the largest city in Kymenlaakso?
The largest municipality is Kouvola with 77,625 residents (Dec 31, 2025), followed by Kotka (50,029) and Hamina (19,113).
How many municipalities are there in Kymenlaakso?
Kymenlaakso has 6 municipalities (as of Jan 1, 2026), 3 of which have city status: Kouvola, Kotka, Hamina.
What is the administrative centre of Kymenlaakso?
The regional centre is Kouvola and Kotka.
How many businesses are there in Kymenlaakso?
Kymenlaakso had 14,497 business establishments in 2024 (Statistics Finland), including 1,027 retail outlets.
How large is Kymenlaakso?
The land area is 4,561 km² and the population density 34.2 residents per km² (Dec 31, 2025).