For governance purposes it is divided between the town of Heron Bay,[5] the Moose Meadows 4 Indian reserve, and the Restigouche rural district;[6] the town and rural district are both members of the Restigouche Regional Service Commission.[7]
Prior to the 2023 governance reform, the parish was divided between the village of Charlo,[5] the Indian reserve, and the local service districts of Charleur and Lorne.[8] In the 2023 reform, Charlo merged with the town of Dalhousie to form Heron Bay, which annexed Heron Island and the communities of Benjamin River, Blackland, and New Mills from Chaleur;[5] Lorne and the remainder of Chaleur became part of the rural district.[6]
Colborne was erected in 1840 from Addington and Beresford Parishes.[10] Colborne comprised Restigouche County between the Benjamin and Eel Rivers.
In 1850 the boundaries were altered to run due south from starting points near the coast: the western boundary from milepost forty-eight on the great road (highway) from Bathurst to Dalhousie, the eastern boundary from the mouth of the Benjamin River.[11]
Parish population total does not include Moose Meadows 4Indian reserve or the portion within the former incorporated village of Charlo. Revised census figures based on the 2023 local governance reforms have not been released.
Notes: 2011 & 2006 income data for this area has been suppressed for data quality or confidentiality reasons. References: 2021[15] 2016[16] 2011[17] earlier[18][19]
^The Territorial Division Act[2] divides the province into 152 parishes, the cities of Saint John and Fredericton, and one town of Grand Falls. The Interpretation Act[3] clarifies that parishes include any local government within their borders.
^ abcde"No. 6". Provincial Archives of New Brunswick. Department of Natural Resources and Energy Development. Retrieved 20 June 2021. Remainder of parish on maps 7, 14, 15, and 26 at same site.
^ abcde"003"(PDF). Transportation and Infrastructure. Government of New Brunswick. Retrieved 20 June 2021. Remainder of parish on mapbooks 004, 015, 016, 029, 030, 048, 049, 068, 069, 088, and 089 at same site.