The area name is linked to saw and grist mills that dotted the Don River, which flows through York Mills.
The Town of York Mills became part of the Township of North York.

The area once linked by radial railways (Metropolitan line and the successor North Yonge Railways) and Highway 11, now can be reached via Highway 401, GO Transit, and Toronto Transit Commission buses and York Mills station on the Yonge-University Spadina subway line.

In 1953, York Mills, along with North York, was severed from York County, joining other municipalities to form the regional government of Metropolitan Toronto.
The area was the site of a tragic accident on March 17, 1960, when five Italian construction workers on a water main project were killed in a tunnel fire.
North York later became a borough, and then a city, and was merged with five other municipalities and a regional government to form  the new "City of Toronto" in 1998.

Today, the area is home to luxury condos and high-end homes.
Houses in York Mills are highly distinguishable and contribute greatly to the proclaimed affluence of the neighbourhood.
50% of occupied dwellings are single detached houses.
Many have been rebuilt and customized to taste, with heavily renovated front yards.
In between 2001 and 2006, property values have increased by 47.6%.
The second type of most occupied dwelling is apartments reaching five or more storeys, inhabited by 28% of the population.
The average price for condominiums in the area ranges from C$800,000 to C$3,000,000, while the average price of a detached home is just above C$4,000,000.
The area name is linked to saw and grist mills that dotted the Don River, which flows through York Mills. The Town of York Mills became part of the Township of North York. 
The area once linked by radial railways (Metropolitan line and the successor North Yonge Railways) and Highway 11, now can be reached via Highway 401, GO Transit, and Toronto Transit Commission buses and York Mills station on the Yonge-University Spadina subway line.
In 1953, York Mills, along with North York, was severed from York County, joining other municipalities to form the regional government of Metropolitan Toronto. The area was the site of a tragic accident on March 17, 1960, when five Italian construction workers on a water main project were killed in a tunnel fire. North York later became a borough, and then a city, and was merged with five other municipalities and a regional government to form  the new "City of Toronto" in 1998.
Today, the area is home to luxury condos and high-end homes. Houses in York Mills are highly distinguishable and contribute greatly to the proclaimed affluence of the neighbourhood. 50% of occupied dwellings are single detached houses. Many have been rebuilt and customized to taste, with heavily renovated front yards. In between 2001 and 2006, property values have increased by 47.6%. The second type of most occupied dwelling is apartments reaching five or more storeys, inhabited by 28% of the population. The average price for condominiums in the area ranges from C$800,000 to C$3,000,000, while the average price of a detached home is just above C$4,000,000.
York Mills