Their names originate from the dialectal word tyrjätä, "to make loud noise, to rumble" [citation needed], referring to the sound of the nearby rapids.

The Tyrväntö chapel community has also been called Kulsiala, which was also an administrative division encompassing an area greater than that of the parish.

It was the location of a medieval church and was therefore the original administrative center of the chapel community.

[2] Suotaala was first mentioned in 1483 and became the administrative center of the area in the 18th century as the new church was built there.

Nowadays the Häme University of Applied Sciences (HAMK) has a gardening sector in Lepaa.