Längelmäki

Längelmäki (known as Längelmä between 1500 and 1510) is a former municipality of Finland. Längelmäki was divided in 2007 between Jämsä and Orivesi.

Its western parts are now part of the Pirkanmaa region and the eastern part are part of the Central Finland region. The municipality had a population of 1,734 (2003) and covered an area of 496,88 km of which 73,33 km was water (2006). The population density was 3.5 inhabitants per km.