It is located in the province of Western Finland and is part of the Central Ostrobothnia region. The municipality has a population of 2,927 (30 June 2015) and covers an area of 775.19 square kilometres (299.30sqmi) of which 27.25km (10.52sqmi) is water. The population density is 3.91 inhabitants per square kilometre (10.1/sqmi).