Its seat of local government is located in Tureberg, which is a part of Sollentuna urban area.

Sollentuna borders the municipalities of Solna, Sundbyberg, Stockholm, Järfälla, Upplands Väsby, Täby and Danderyd in clockwise order starting to the south.

Since 1995, the bulk of the built-up area of the municipality has been statistically included in the multimunicipal city of Stockholm.

The municipality is subdivided into the following districts according to population as of 31 December 2021:[4][1][5] Central to the landscape of Sollentuna are the rather big lakes Norrviken and Edsviken—the latter a bay of the Baltic Sea.

Other lakes: Sollentuna municipality was founded in conjunction with the reform of local government in Sweden in 1863.

However, its boundaries are almost equivalent to those of Sollentuna Parish,[citation needed] which dates back to the 12th century.

Five of the eight districts that make up the municipality today correspond to railway stations, now operated by Stockholm commuter rail system.

The population in Sollentuna Municipality has the 11th highest median income per capita in Sweden.