Karstula

Karstula is a municipality of Finland founded in 1867. It is located in the Central Finland region. The municipality has a population of () and covers an area of of which is water. The population density is .
Neighbouring municipalities are Kannonkoski, Kivijärvi, Kyyjärvi, Saarijärvi and Soini.
There are all together 159 lakes in Karstula. Biggest lakes are Pääjärvi, Enonjärvi and Vahanka.
Transport.
Highway 13 between Kokkola and Lappeenranta, main road 58 between Kangasala and Kärsämäki and main road 77 between Kyyjärvi and Siilinjärvi pass through the Karstula municipality.