Kuusankoski

Kuusankoski is a former municipality of Finland. It was located in the Kymi Province and later in the Province of Southern Finland. In 2009, Kuusankoski merged with the neighboring municipalities of Anjalankoski, Elimäki, Jaala and Kouvola to form the new municipality of Kouvola. Kuusankoski was situated along the Kymi River, a major river in Southern Finland.

The history of Kuusankoski is closely tied to the industrial development of the Kymi River valley. Paper mills were established in the area in the late 19th and early 20th centuries, which significantly boosted the local economy and population growth. The municipality's name, Kuusankoski, is derived from the rapids (koski) on the Kymi River and the spruce trees (kuusi) that were abundant in the surrounding forests.

Before its merger, Kuusankoski had a population of approximately 20,000 residents. The area was known for its industrial heritage, particularly in the pulp and paper industry. It also had recreational areas and natural landscapes, offering opportunities for outdoor activities. The administrative center of Kuusankoski was the town of Kuusankoski itself. The merger into Kouvola aimed to create a larger and more viable administrative unit, consolidating services and resources.