Hertsön is a Swedish island in the Bothnian Bay, largely occupied by the eastern districts of the city of Luleå.

Due to post-glacial rebound, the islands Svartön, Mulön, Granön and Björkön have merged with the island. The size of the island is around 73 km², making it the twelfth largest island in Sweden.


  1. ^ "Statistisk årsbok 2011" (PDF) (in Swedish). Statistics Sweden. p. 12. Archived from the original (PDF) on 5 July 2011. Retrieved 5 July 2011.