Jalasjärvi is a former municipality of Finland. It was merged to the town of Kurikka on 1 January 2016. It is located in the province of Western Finland and is part of the Southern Ostrobothnia region. The population of Jalasjärvi was (30 June 2015) and covered a land area of . The population density was . The municipality was unilingually Finnish. Villages Alavalli, Hirvijärvi, Ilvesjoki, Jalasjärvi, Jokipii, Keskikylä, Koskue, Luopajärvi, Sikakylä, Taivalmaa and Ylivalli. Sights The Devil's Nest, the deepest ground erosion in Europe The Local Heritage Museum of Jalasjärvi, one of the largest local museums in Finland, consisting of over 25 rural buildings and a collection of exhibits approaching nearly 30,000 items in total References External links Municipality of Jalasjärvi – Official website Jalasjärvi Populated places established in 1867 Former municipalities of Finland