The present municipality was formed in 1971 through the amalgamation of the City of Kungälv, the City of Marstrand and territories belonging to four rural municipalities. In 1974 a minor part (situated on the island of Hisingen) was transferred to Gothenburg Municipality.
The present municipality was formed in 1971 through the amalgamation of the City of Kungälv the City of Marstrand and territories belonging to four rural municipalities. In 1974 a minor part (situated on the island of Hisingen) was transferred to Gothenburg Municipality.