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.
Since a local government reform in 2011, it has been incorporated into the municipality of Kymi-Aliveri, which is a municipal unit. The municipal unit covers an area of 127.559 square kilometers.