[4] For governance purposes it is divided between the town of Heron Bay,[5] village of Belledune,[6] the Moose Meadows 4 Indian reserve, and the Restigouche rural district;[7] the town, village, and rural district are members of the Restigouche Regional Service Commission.

[8] Prior to the 2023 governance reform, the parish was divided between Belledune, the Indian reserve, and the local service districts of Chaleur and Lorne.

[9] The 2023 reform had no effect on Belledune but the community of Benjamin River on the western parish line was annexed by Heron Bay;[6] Lorne and the remainder of Chaleur became part of the Restigouche rural district.

[7] The parish was named in honour of the Earl of Durham,[10] Governor General of British North America at the time the legislation erecting the parish was passed;[11] he resigned his post before the Act became effective.

[13][14][15] bold indicates an incorporated municipality; italics indicate a name no longer in official use Bodies of water[a] at least partly within the parish.