Thornhill, Ontario

Thornhill
Suburban district
Thornhill within Vaughan and Markham
Coordinates: 43°48′58″N 79°25′28″W / 43.81611°N 79.42444°W / 43.81611; -79.42444
CountryCanada
ProvinceOntario
Regional MunicipalityYork
CitiesVaughan and Markham
Settled1794
Incorporated1931 (Police village)
Changed Municipality1971 York Region from York County
Amalgamated1971 into Vaughan and Markham (as Towns) 1990 (as City of Vaughan) and 2012 (as City of Markham)
Government
  MPsMelissa Lantsman (Thornhill)
Tim Hodgson (Markham—Thornhill)
  MPPsLaura Smith (Thornhill)
Logan Kanapathi (Markham—Thornhill)
  CouncillorsVaughan: Chris Ainsworth (Ward 4)
Gila Martow (Ward 5)
Markham: Keith Irish (Ward 1)
Area
  Total
62.90 km2 (24.29 sq mi)
Population
 (2016)
  Total
112,719
  Density1,791.9/km2 (4,641/sq mi)
DemonymThornhiller
Forward Sortation Area

Thornhill is a suburban district in the Regional Municipality of York in Ontario, Canada. The western portion of Thornhill is within the City of Vaughan and its eastern portion is within the City of Markham, with Yonge Street forming the boundary between Vaughan and Markham. Thornhill is situated along the northern border of Toronto, centred on Yonge, and is also immediately south of the City of Richmond Hill. Once a police village, Thornhill is still a postal designation. As of 2016, its total population, including both its Vaughan and Markham sections, was 112,719.