Uusikaupunki is a town and municipality of Finland. It is located in the Southwest Finland region, 71 kilometres northwest of Turku and 97 kilometres south of Pori. The municipality has a population of 14,887 and covers an area of 551.65 square kilometres of which 49.04 km2 is inland water. The population density is 29.58 inhabitants per square kilometre. The municipality is unilingually Finnish. Both its Finnish and Swedish names translate literally to "new town".