Jämijärvi

Jämijärvi
Municipality
Jämijärven kunta
Jämijärvi kommun
Jämijärvi Church
Location of Jämijärvi in Finland
Coordinates: 61°49′N 022°41.5′E / 61.817°N 22.6917°E / 61.817; 22.6917
Country Finland
RegionSatakunta
Sub-regionNorthern Satakunta
Charter1865
Government
  Municipal managerAku Autio
Area
 (2018-01-01)
  Total
224.34 km2 (86.62 sq mi)
  Land215.09 km2 (83.05 sq mi)
  Water9.99 km2 (3.86 sq mi)
  Rank257th largest in Finland
Population
 (2025-03-31)
  Total
1,668
  Rank273rd largest in Finland
  Density7.75/km2 (20.1/sq mi)
Population by native language
  Finnish96.9% (official)
  Others3.1%
Population by age
  0 to 1414.6%
  15 to 6453.8%
  65 or older31.6%
Time zoneUTC+02:00 (EET)
  Summer (DST)UTC+03:00 (EEST)
ClimateDfc
Websitejamijarvi.fi

Jämijärvi is a municipality of Finland.

It is located in the province of Western Finland and is part of the Satakunta region. The municipality has a population of 1,668 (31 March 2025) and covers an area of 224.34 square kilometres (86.62 sq mi) of which 9.99 km2 (3.86 sq mi) is water. The population density is 7.75 inhabitants per square kilometre (20.1/sq mi).

The municipality is unilingually Finnish.

Jämijärvi Airfield is one of the busiest general aviation airfields in Finland. A serious aviation accident happened in Jämijärvi in April 2014.