Espoo (Finnish pronunciation: [ˈespoː]; Swedish: Esbo, [ˈɛsbo]) is the second largest city and municipality in Finland. The population of the city of Espoo is 257,461 (28 February 2013). It is part of the Capital region and most of its population lives in inner urban core of Helsinki metropolitan area, along with the cities of Helsinki, Vantaa, and Kauniainen. Espoo shares its eastern border with Helsinki and Vantaa, while enclosing Kauniainen. Espoo is the only municipality in Finland to fully enclose another municipality. The city is on the shore of the Gulf of Finland, in the region of Uusimaa.
Other bordering municipalities of Espoo are Nurmijärvi and Vihti in the north and Kirkkonummi in the west. The national park of Nuuksio is situated in northwest Espoo.
Espoo encompasses 528 square kilometres (204 sq mi), of which 312 km2 (120 sq mi) is land.