Backa was one of Gothenburg’s 20 districts, and one of the seven parts of the island Hisingen, but from January 1, 2011 Backa merged with two other districts of Gothenburg, Kärra-Rödbo and Tuve-Säve to form Norra Hisingen. This change was part of bigger reconstruction turning the 20 districts of Gothenburg to only 10 districts.