Kurikka is a town and municipality of Finland. It is located in the province of Western Finland and is part of the Southern Ostrobothnia region. The population of Kurikka is 20,540 and the municipality covers an area of 905.66 km2 (349.68 sq mi) of which 7.79 km2 (3.01 sq mi) is inland water. The population density is 22.68/km2 (58.7/sq mi). The municipality is unilingually Finnish.