????-2019[]
On 1 January 2019, Winsum was split with the majority of the municipality merging with Bedum, De Marne, and Eemsmond to form Het Hogeland; whilst the south east of the municipality merging with Grootegast, Leek, Marum, and Zuidhorn to form Westerkwartier.
Eemsdelta | Groningen | Het Hogeland | Midden-Groningen | Oldambt | Pekela | Stadskanaal | Veendam | Westerkwartier | Westerwolde
Former: (2000–2021) |