Nurmijärvi (Finnish pronunciation:[ˈnurmiˌjærʋi]) is the most populated rural municipality of Finland, located 37 kilometres (23mi) north of the capital Helsinki.
The close proximity to Helsinki has led to a considerable growth of the major villages such as Klaukkala and Rajamäki, which nowadays are considered dormitory towns of Helsinki. Klaukkala is the biggest built-up area of Nurmijärvi.