Mäntsälä

Mäntsälä is a municipality in Finland. About 21,000 people lived there in 2015. The municipalities next to it are Askola, Hausjärvi, Hyvinkää, Järvenpää, Tuusula, Kärkölä, Orimattila, Pornainen, Pukkila and Sipoo.
Mäntsälä was probably founded in 1585.