Introduction
You can help expand this article with text translated from the corresponding article in Finnish.  (June 2023) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must follow the LLM translation guideline, revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Finnish Wikipedia article at [[:fi:Kaustinen]]; see its history for attribution. You may also add the template {{Translated|fi|Kaustinen}} to the talk page. For more guidance, see Wikipedia:Translation. Municipality in Central Ostrobothnia, FinlandKaustinen KaustbyMunicipalityKaustisen kuntaKaustby kommunThe Church in Kaustinen on the sloping churchhill. Coat of armsNickname: The Fiddling Capital of FinlandLocation of Kaustinen in FinlandInteractive map of KaustinenCoordinates: 63°33′N 023°41.5′E / 63.550°N 23.6917°E / 63.550; 23.6917Country FinlandRegionCentral OstrobothniaSub-regionKaustinen sub-regionCharter1866Government • Municipal managerMinna NikanderArea (2018-01-01) • Total361.12 km2 (139.43 sq mi) • Land353.91 km2 (136.65 sq mi) • Water7.09 km2 (2.74 sq mi) • Rank218th largest in FinlandPopulation (2025-12-31) • Total4,074 • Rank187th largest in Finland • Density11.51/km2 (29.8/sq mi)Population by native language • Finnish95% (official) • Swedish1.9% • Others3.1%Population by age • 0 to 1418.8% • 15 to 6457.4% • 65 or older23.9%Time zoneUTC+02:00 (EET) • Summer (DST)UTC+03:00 (EEST)Websitekaustinen.fi Kaustinen (Swedish: Kaustby) is a municipality of Finland. It is part of the Central Ostrobothnia region. The municipality has a population about 4300 and covers an area of 361.12 square kilometres (139.43 sq mi) of which 7.09 km2 (2.74 sq mi) is water. The population density is 11.51 inhabitants per square kilometre (29.8/sq mi). Neighbouring municipalities are Halsua, Kokkola, Kronoby and Veteli. The municipality is unilingually Finnish. It is the home of the Kaustinen Folk Music Festival, held every July, and one of its notable "house bands" include JPP. The violin appearing in the municipality's coat of arms refers to the locality's still continuing old tradition of Finnish folk music. The comic strip bird Woodstock from Peanuts, named for the rock music festival in Woodstock, New York, is called "Kaustinen" in Finnish with obvious reference to the folk music festival of the municipality. Europe's largest lithium reserve is located in Kaustinen area. Kaustinen is also home a Finnish independent game studio Horsefly Games.