Lappajärvi

Lappajärvi
Municipality
Lappajärven kunta
Lappajärvi kommun
Location of Lappajärvi in Finland
Coordinates: 63°13′N 023°38′E / 63.217°N 23.633°E / 63.217; 23.633
Country Finland
RegionSouthern Ostrobothnia
Sub-regionJärviseutu
Charter1865
Government
  Municipal managerSami Alasara
Area
 (2018-01-01)
  Total
522.98 km2 (201.92 sq mi)
  Land420.89 km2 (162.51 sq mi)
  Water102.89 km2 (39.73 sq mi)
  Rank200th largest in Finland
Population
 (2025-03-31)
  Total
2,739
  Rank225th largest in Finland
  Density6.51/km2 (16.9/sq mi)
Population by native language
  Finnish92.9% (official)
  Swedish0.4%
  Others6.7%
Population by age
  0 to 1413.9%
  15 to 6450.3%
  65 or older35.8%
Time zoneUTC+02:00 (EET)
  Summer (DST)UTC+03:00 (EEST)
Websitelappajarvi.fi

Lappajärvi is a municipality in Finland's Southern Ostrobothnia region. It is located 78 kilometres (48 mi) from Seinäjoki, 80 kilometres (50 mi) from Kokkola and 117 kilometres (73 mi) from Vaasa. The municipality has a population of 2,739 (31 March 2025) and covers an area of 522.98 square kilometres (201.92 sq mi) of which 102.89 km2 (39.73 sq mi), or nearly 20% is water. The population density is 6.51 inhabitants per square kilometre (16.9/sq mi).

The municipality is unilingually Finnish.

Lake Lappajärvi, which gives the name to the municipality, is a meteor crater, one of the few meteor crater lakes found in Finland.

Singer and performer, Timo Kotipelto from the worldwide known Finnish power metal band Stratovarius was born and raised in Lappajärvi.