Kauhajoki (Finnish pronunciation: [ˈkɑu̯hɑˌjoki]; lit. “Scoop River”) is a town and municipality of Finland. It is located in the province of Western Finland and is part of the Southern Ostrobothnia region, 59 kilometres (37 mi) southwest of the city of Seinäjoki. The population of Kauhajoki is 12,564 (31 August 2024) and the municipality covers an area of 1,298.98 km2 (501.54 sq mi) of which 16.46 km2 (6.36 sq mi) is inland water (1 January 2018). The population density is 9.67/km2 (25.0/sq mi). The town is unilingually Finnish.
The neighboring municipalities of Kauhajoki are Isojoki in the southwest, Kankaanpää in the south, Karijoki in the west, Karvia in the southeast, Kurikka in the north and Teuva in the west. Kauhajoki is the center of the Suupohja sub-region.
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