Since a local government reform in 2011, it has been part of the municipality of Kymi-Aliveri, of which it is a municipal unit. The municipal unit has an area of 127.559 km2.
After a local government restructuring in 2011, this entity became part of the municipality of Kymi-Aliveri, which is one of its administrative units. The municipality has a land area of 127.559 square kilometers.