Uusikaupunki is a municipality of Finland in the region of Lounais-Suomi. It is located in the Southwest Finland region. The municipality has a population of 15,685 (31 January 2019) and covers an area of 551.65 square kilometres (212.99 sq mi) of which 49.04 km2 (18.93 sq mi) is inland water. The population density is 31.21 inhabitants per square kilometre (80.8/sq mi).
The municipality is unilingually Finnish. Both its Finnish and Swedish names translate literally to "new town". The original name of the main village that was incorporated into Uusikaupunki was Kalainen (roughly translated from Finnish as "rich in fish"). The surrounding region, and especially the neighboring town of Kalanti, which merged with Uusikaupunki in 1993, was already a lively marketplace for wooden objects and salt in the early Middle Ages. Uusikaupunki was founded to legalize this trade.
The town of Uusikaupunki was founded as a town with the rights of commerce in 1617 by decree by Gustav II Adolf. In 1721, the Peace of Nystad was signed in Uusikaupunki, ending the Great Northern War between Sweden and Russia. Up to the 19th century, Uusikaupunki was an important port for commerce and fishing, and up to the latter half of the 20th century, it retained an important ship-building industry.
- AnchovyPower (2016)
- GreenLakeZone (2012)
- KulttuuriZone (2016)
- NineSquares (2012)
- NystadsKyrka (2015)
- SorvakonPohja (2016)