Jämsänkoski

Jämsänkoski is a former municipality in Finland, located in the Central Finland region. It was established in 1930 and merged with the town of Jämsä in 2001. The area is situated along the Jämsänjoki river, which flows into Lake Päijänne. Historically, Jämsänkoski was a significant industrial center, primarily known for its pulp and paper mill, which was one of the largest employers in the region. The mill's operations have profoundly shaped the development and identity of the locality.

The landscape of Jämsänkoski is characterized by forests and numerous lakes, typical of the Finnish Lakeland. The river Jämsänjoki has provided both power for industry and recreational opportunities. Before its municipal status, the area was part of the larger Jämsä parish. The development of the paper mill in the late 19th and early 20th centuries led to the growth of a distinct community around it.

Following the merger with Jämsä, Jämsänkoski now functions as a district within the larger municipality. While the paper mill's importance has evolved over time, its legacy remains a strong part of the area's heritage. The population of Jämsänkoski experienced growth during the industrial boom but has seen more moderate changes in recent decades. The area continues to be a part of the wider Jämsä region, contributing to its economic and cultural landscape.