Ingarö is an island in Värmdö Municipality in Uppland province in Stockholm County. The island is the main part of the Ingarö parish. The island is just over 63 km², making it the largest island in Sweden. Ingarö has lived in population since the Bronze Age; on the island there are rock carvings. Over the last 100 years, the number of recreational homes has increased while living for a period decreased in number. However, there has been a trend break as more and more vacation homes have been converted to villas and more permanent housing has been built.

This can be explained by the fact that existing roads make it possible to commute to Stockholm. In 1995 approximately 3500 inhabitants lived on the island; In 1999, this had increased to about 4,500, that is, an increase of just over 28% in four years. By 2012, the number of residents was over 9000. At Ingarö Cemetery, Sweden’s first pilot Carl Cederström is buried, also known as “Calle Aviator” of the locals. “Calle aviators” also have two roads in Brunn named after (Calle Airways Road and Baron Cederströms Road). On the island there is a golf course (36 holes) and a sports club, Ingarö IF, which in the 70’s was a sequel to the Swedish TV magazine Sweden, which was named Sweden’s worst hockey team. At Återvallssjön is Sweden’s first nudist bath.