Petit-Rocher-Nord, also known as Devereaux, is an unincorporated place in New Brunswick, Canada, located north of Petit-Rocher. It is recognized as a designated place by Statistics Canada.
In the 2021 Census of Population conducted by Statistics Canada, Petit-Rocher-Nord (Deveraux) had a population of 577 living in 245 of its 257 total private dwellings, a change of from its 2016 population of 572. With a land area of , it had a population density of in 2021.