Newcastle Parish, New Brunswick
Newcastle  | |
|---|---|
Location within Northumberland County, New Brunswick  | |
| Coordinates: 47°00′N 65°34′W / 47.0°N 65.57°W | |
| Country | Canada | 
| Province | New Brunswick | 
| County | Northumberland | 
| Erected | 1786 | 
| Area | |
| • Land | 578.70 km2 (223.44 sq mi) | 
| Population  (2021)  | |
 • Total  | 1,149 | 
| • Density | 2.0/km2 (5/sq mi) | 
| • Change 2016-2021 | 1.1% | 
| • Dwellings | 529 | 
| Time zone | UTC-4 (AST) | 
| • Summer (DST) | UTC-3 (ADT) | 
| Figures do not include portions within the city of Miramichi and the Eel Ground 2 Indian reserve | |
Newcastle is a geographic parish in Northumberland County, New Brunswick, Canada.
For governance purposes it is divided between the city of Miramichi and the Greater Miramichi rural district, with small border areas belonging to the incorporated rural communities of Alnwick (Bartibog area) and Miramichi River Valley (Chaplin Island Road), all of which are members of the Greater Miramichi Regional Service Commission, and the Eel Ground 2 and Metepenagiag Uta'nk Indian reserves, which are not part of the RSC.
Prior to the 2023 governance reform, the parish was divided between Miramichi, the Indian reserves, and the local service districts of Lower Newcastle-Russellville and the parish of Newcastle.