North York is a dissolved municipality within the current city of Toronto, Ontario, Canada. Geographically, it comprises the central part of the northern section of Toronto. The official 2001 census count was 608,288. Until 1998, it was the second-largest of six municipalities that comprised another larger municipal structure called Metropolitan Toronto. The previous year, the provincial Government of Ontario passed legislation to merge these municipalities into a single, new amalgamated City of Toronto. North York is one of the most diverse areas of Toronto, as it contains some of the most affluent areas of the city and some of the poorest .
The Township of North York was formed on June 13, 1922 out of the rural part of the Township of York. The rapidly-urbanizing parts of the Township remained in that township. As North York itself became more urbanized, it became the Borough of North York in 1967, and then on February 14, 1979, the City of North York. To commemorate receiving its city charter on St. Valentine's Day, the city's corporate slogan was "The City with Heart". It now forms the largest part of the area served by the "North York Community Council", a committee of Toronto City Council.