Per 1 January 2019, the municipalities of Aalter and Knesselare were merged into Aalter, Deinze and Nevele into Deinze, and Waarschoot, Lovendegem and Zomergem into Lievegem.
On January 1, 2019, the municipalities of Aalter and Knesselare were amalgamated with Aalter, Deinze, and Nevele to form Deinze, and Waarschoot, Lovendegem, and Zomergem were consolidated into Lievegem.