Sipoo

Sipoo (, Swedish: Sibbo) is a municipality of Finland. Its seat is in Nikkilä/Nickby. It is the eastern neighbour of Helsinki and is located in the Uusimaa region. The municipality has a population of 18,776 (30 September 2012) and covers an area of 698.59 square kilometres (269.73 sq mi) of which 358.97 km2 (138.60 sq mi) is water. The population density is 55.29 inhabitants per square kilometre (143.2 /sq mi).