Jämsä (Finnish pronunciation: [ˈjæms̠æ]) is a town and municipality of Finland. It is located in the Central Finland region, about 58 kilometres (36 mi) southwest of Jyväskylä. The municipality has a population of 20,109 (31 July 2020),[2] which make it the second largest town of the Central Finland after Jyväskylä. It covers an area of 1,823.90 square kilometres (704.21 sq mi) of which 252.57 km2 (97.52 sq mi) is water.[1] The population density is 12.8 inhabitants per square kilometre (33/sq mi).

Jämsän kaupunki
Jämsä stad
Jämsänkoski Rapids
Jämsänkoski Rapids
Coat of arms of Jämsä
Coat of arms
Location of Jämsä in Finland
Location of Jämsä in Finland
Coordinates: 61°52′N 025°11′E / 61.867°N 25.183°E / 61.867; 25.183Coordinates: 61°52′N 025°11′E / 61.867°N 25.183°E / 61.867; 25.183
Country Finland
RegionCentral Finland
Sub-regionJämsä sub-region
 • Town managerTapani Mattila
 • Total1,823.90 km2 (704.21 sq mi)
 • Land1,571.34 km2 (606.70 sq mi)
 • Water252.57 km2 (97.52 sq mi)
Area rank39th largest in Finland
 • Total20,109
 • Rank55th largest in Finland
 • Density12.8/km2 (33/sq mi)
Population by native language
 • Finnish98.8% (official)
 • Swedish0.1%
 • Others1.1%
Population by age
 • 0 to 1415.9%
 • 15 to 6462.7%
 • 65 or older21.4%
Time zoneUTC+02:00 (EET)
 • Summer (DST)UTC+03:00 (EEST)
Municipal tax rate[5]21%

The municipality is officially Finnish-speaking.

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.

It is the center of Finnish aeronautics industry – the aircraft factory and aeronautical engineering offices of Patria is located at Halli Airport in Jämsä.

Since 1994, the ski slope at Himos has been used as a super special stage at the Rally Finland.


There are all together around 465 lakes in Jämsä. The largest lakes are Päijänne, Koljonselkä [fi] and Lake Kuorevesi.[6]

Twin citiesEdit



  1. ^ a b "Area of Finnish Municipalities 1.1.2018" (PDF). National Land Survey of Finland. Retrieved 30 January 2018.
  2. ^ a b "Suomen virallinen tilasto (SVT): Väestön ennakkotilasto [verkkojulkaisu]. Heinäkuu 2020" (in Finnish). Statistics Finland. Retrieved 13 September 2020.
  3. ^ "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.
  4. ^ "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.
  5. ^ "List of municipal and parish tax rates in 2011". Tax Administration of Finland. 29 November 2010. Retrieved 13 March 2011.
  6. ^ "Jämsä". Järviwiki. Finland's Environmental Administration. 2012. Retrieved 27 February 2012.
  7. ^ "Ystävyyskaupungit" (in Finnish). Suomalais-venäläinen kauppakamari. Archived from the original on 19 September 2012. Retrieved 7 May 2012.
  8. ^ a b c "Jämsä" (in Finnish). Suomen kaupunkiopas. Retrieved 7 May 2012.

External linksEdit

  Media related to Jämsä at Wikimedia Commons