Sonkajärvi

Sonkajärvi
Municipality
Sonkajärven kunta
Sonkajärvi kommun
Sonkajärvi town hall
Location of Sonkajärvi in Finland
Coordinates: 63°40′N 27°31′E / 63.667°N 27.517°E / 63.667; 27.517
Country Finland
RegionNorthern Savonia
Sub-regionUpper Savonia
Charter1922
Government
  Municipal managerSimo Mäkinen
Area
 (2018-01-01)
  Total
1,576.78 km2 (608.80 sq mi)
  Land1,465.93 km2 (566.00 sq mi)
  Water110.86 km2 (42.80 sq mi)
  Rank44th largest in Finland
Population
 (2025-03-31)
  Total
3,555
  Rank202nd largest in Finland
  Density2.43/km2 (6.3/sq mi)
Population by native language
  Finnish98.3% (official)
  Others1.7%
Population by age
  0 to 1412.2%
  15 to 6453.4%
  65 or older34.5%
Time zoneUTC+02:00 (EET)
  Summer (DST)UTC+03:00 (EEST)
Websitewww.sonkajarvi.fi

Sonkajärvi (Finnish pronunciation: [ˈsoŋkɑˌjærʋi]; formerly known as Rutakko) is a municipality of Finland. It is located in Northern Savonia region, 105 kilometres (65 mi) north of Kuopio. The municipality has a population of 3,555 (31 March 2025) and covers an area of 1,576.78 square kilometres (608.80 sq mi) of which 110.86 km2 (42.80 sq mi) is water. The population density is 2.43 inhabitants per square kilometre (6.3/sq mi). The municipality is unilingually Finnish.

The coat of arms of Sonkajärvi is inspired by the many watermills in the region, which the picture of the water wheel refers to, and the slash-and-burn cultivation of the past, which the flames on top of the wheel refer to. The coat of arms was designed by Ahti Hammar, and the Sonkajärvi municipal council approved it at its meeting on July 15, 1954. The Ministry of the Interior approved the coat of arms for use on October 15 of the same year.