York County, Ontario
Historic municipalities
The following table is a list of historic municipalities that were at one point situated within York County.

York County, Ontario

Section Title: Historic municipalities
Table Section Text: The following table is a list of historic municipalities that were at one point situated within York County.

Type of municipality	Name of municipality	Date severed from York County	Present municipality	Present upper-tier government

Township	Albion	1851	Town of Caledon	Peel Region

Town	Aurora	1971	Town of Aurora	York Region

Township	Caledon	1851	Town of Caledon	Peel Region

Township	Chinguacousy	1851	City of Brampton Town of Caledon	Peel Region

Township	East Gwillimbury	1971	Town of East Gwillimbury	York Region

Township	East York	1954	City of Toronto

Township	Etobicoke	1954	City of Toronto

Village	Forest Hill	1954	City of Toronto

Township	Georgina	1971	Town of Georgina	York Region

Township	King	1971	Township of King	York Region

Town	Leaside	1954	City of Toronto

Village	Long Branch	1954	City of Toronto

Village	Markham	1971	City of Markham	York Region

Town	Mimico	1954	City of Toronto

Town	New Toronto	1954	City of Toronto

Township	Nelson	1816	City of Burlington	Halton Region

Town	Newmarket	1971	Town of Newmarket	York Region

Township	North Gwillimbury	1971	Town of Georgina	York Region

Township	North York	1954	City of Toronto

Village	Oshawa	1851	City of Oshawa	Durham Region

Township	Pickering	1851	City of Pickering	Durham Region

Town	Richmond Hill	1971	Town of Richmond Hill	York Region

Township	Scarborough	1954	City of Toronto

Village	Stouffville	1971	Town of Whitchurch-Stouffville	York Region

Village	Swansea	1954	City of Toronto

Township	Thorah	1851	Township of Brock	Durham Region

City	Toronto	1954	City of Toronto

Township	Toronto	1851	City of Mississauga	Peel Region

Township	Toronto Gore	1851	City of Brampton City of Mississauga	Peel Region

Township	Trafalgar	1816	Town of Oakville	Halton Region

Township	Uxbridge	1851	Township of Uxbridge	Durham Region

Township	Vaughan	1971	City of Vaughan	York Region

Town	Weston	1954	City of Toronto

Township	Whitby	1851	Town of Whitby	Durham Region

Township	Whitchurch	1971	Town of Whitchurch-Stouffville	York Region

Township	York	1954	City of Toronto

Sentence(s)

York County, Ontario is comprised of the City of Toronto, the regional municipalities of Halton, Peel and York as well as Durham.

final_sentence: York County, Ontario is comprised of the City of Toronto, the regional municipalities of Halton, Peel and York as well as Durham.