Lohja (Finnish pronunciation: [ˈlohjɑ]; Swedish: Lojo) is a city and municipality in the Uusimaa region of Finland. The city has a population of 47,518 (2017), and it covers an area of 1,109.73 square kilometres (428.47 sq mi) of which 91.78 km2 (35.44 sq mi), or 8.3 percent, is water. The population density of Lohja is 131.64 inhabitants per square kilometre (340.9/sq mi). The municipality is bilingual, with the majority being Finnish and minority Swedish speakers. Lohja has the fourth-most summer houses of any municipality in Finland, with 8,468 located within the city as of June 2018. Lohja is located near Greater Helsinki, and it benefits from a good road network. It takes less than an hour to drive from Helsinki to Lohja on the E18 motorway, which is one of the most significant main r