It is located in the province of Western Finland and is part of the Central Finland region. The municipality has a population of 20,589 (31 January 2019) and covers an area of 1,823.90 square kilometres (704.21 sq mi) of which 252.57 km2 (97.52 sq mi) is water. There are all together around 465 lakes in Jämsä. The largest lakes are Päijänne, Koljonselkä and Lake Kuorevesi. The population density is 13.1 inhabitants per square kilometre (34/sq mi).
Coat of arms
Location of Jämsä in Finland
|Coordinates: 61°52′N 025°11′E|
|• Town manager||Tapani Mattila|
|• Total||1,823.90 km2 (704.21 sq mi)|
|• Land||1,571.34 km2 (606.70 sq mi)|
|• Water||252.57 km2 (97.52 sq mi)|
|Area rank||39th largest in Finland|
|• Rank||52nd largest in Finland|
|• Density||13.1/km2 (34/sq mi)|
|Population by native language|
|• Finnish||98.8% (official)|
|Population by age|
|• 0 to 14||15.9%|
|• 15 to 64||62.7%|
|• 65 or older||21.4%|
|Time zone||UTC+02:00 (EET)|
|• Summer (DST)||UTC+03:00 (EEST)|
|Municipal tax rate||21%|
The municipality is Finnish.
The municipality of Kuorevesi was consolidated with Jämsä in 2001. The municipality of Längelmäki was partly consolidated with Jämsä in 2007. The municipality of Jämsänkoski was consolidated with Jämsä in the beginning of 2009.
Since 1994, the ski slope at Himos has been used as a super special stage at the Rally Finland.
- "Area of Finnish Municipalities 1.1.2018" (PDF). National Land Survey of Finland. Retrieved 30 January 2018.
- "Suomen virallinen tilasto (SVT): Väestön ennakkotilasto [verkkojulkaisu]. Tammikuu 2019" (in Finnish). Statistics Finland. Retrieved 15 March 2019.
- "Population according to language and the number of foreigners and land area km2 by area as of 31 December 2008". Statistics Finland's PX-Web databases. Statistics Finland. Retrieved 29 March 2009.
- "Population according to age and gender by area as of 31 December 2008". Statistics Finland's PX-Web databases. Statistics Finland. Retrieved 28 April 2009.
- "List of municipal and parish tax rates in 2011". Tax Administration of Finland. 29 November 2010. Retrieved 13 March 2011.
- "Jämsä". Järviwiki. Finland's Environmental Administration. 2012. Retrieved 27 February 2012.
- "Ystävyyskaupungit" (in Finnish). Suomalais-venäläinen kauppakamari. Archived from the original on 19 September 2012. Retrieved 7 May 2012.
- "Jämsä" (in Finnish). Suomen kaupunkiopas. Retrieved 7 May 2012.
- Town of Jämsä – Official website, finnish, english