Black River-Hardwicke
Black River-Hardwicke was a local service district in Northumberland County, New Brunswick. It is now part of the Greater Miramichi rural district.
Demographics
In the 2021 Census of Population conducted by Statistics Canada, Black River-Hardwicke had a population of living in of its total private dwellings, a change of from its 2016 population of. With a land area of, it had a population density of in 2021.| Name | Parish | Population | Population | Change | Land area | Population density |
| Black River-Hardwicke part A | Glenelg | - | - | |||
| Black River-Hardwicke part B | Hardwicke | - | - | |||
| Total | — | ' | ' | - | - |