Tervakoski (Finnish pronunciation: [ˈterʋɑˌkoski]) is a small town in Janakkala, Finland. In 2021, there were 3,972 inhabitants.[1]
A well-known and popular amusement park Puuhamaa is located in the village.
Tervakoski Oy's paper mill, established in 1818, is located in Tervakoski.[2]