Westmorland County (2011 population 144,158) is a county in New Brunswick, a province of Canada. It is in the south-eastern part of the province. It contains the fast-growing commercial centre of Moncton and its northern and eastern suburbs. Also located in the county are the university town of Sackville and the tourist destination of Shediac.Westmorland County is centrally located in the Maritimes and is New Brunswick's most populous county.