Lidingö is an island in the inner Stockholm archipelago, northeast of Stockholm, Sweden. In 2010, the population of the Lidingö urban area on the island was 31,561. It is the seat of government of the Lidingö Municipality, Stockholm County.Lidingö's qualities have attracted affluent residents such as Björn Ulvaeus and Agnetha Fältskog of ABBA. Exclusive regions include the coastal region between Mölna and the east tip of the island, Gåshaga, as well as the east tip of the northern part of the horse shoe, called Elfvik. Notwithstanding the fact that many middle-class Swedes have moved to the island, (due to rental apartment construction projects), the municipality remains the third wealthiest in Sweden after Danderyd and Täby.NatureThe seascape at Lidingö shares similarities with that of Seattle, USA and Sydney, Australia, with clear blue skies and waterways. The landscape is one of large forests and open farm land.The Lidingö summer is limited to the period between the end of May and August, when the air temperature seldom exceeds 25 °C. Sea water temperatures usually peak around 20 °C, in mid July, in the inner parts of the archipelago.