Valkeakoski is a town and municipality situated in the Pirkanmaa region of Finland. It is located approximately 35 kilometres south of Tampere, 45 kilometres north of Hämeenlinna, and 150 kilometres north of Helsinki.
The municipality covers an area of 372.03 square kilometres, with 100.06 square kilometres consisting of water. As of December 31, 2025, the population is recorded at 20,762 residents, resulting in a population density of 76.32 inhabitants per square kilometre.