Hyrynsalmi is a municipality in Finland and is part of the Kainuu region. The municipality has a population of () and covers an area of of which is water. The population density is . The municipality is unilingually Finnish. The world championships in swamp football is held annually in Hyrynsalmi. References External links Municipality of Hyrynsalmi – Official website Map of Hyrynsalmi (PDF file) Municipalities of Kainuu