Mount Joy, Ontario

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Mount Joy
Unincorporated community
Aerial view of Mount Joy, Ontario in 2024
Coordinates: 43°53′17″N 79°15′47″W / 43.88806°N 79.26306°W / 43.88806; -79.26306
Country	Canada
Province	Ontario
Regional municipality	York
City	Markham
Time zone	UTC-5 (EST)
• Summer (DST)	UTC-4 (EDT)
Area code(s)	905 and 289
NTS Map	030M14
GNBC Code	FCFAS

Mount Joy is a community located in the north part of Markham, Ontario, Canada near Highway 48 and 16th Avenue and part of the former Township of Markham.

Mount Joy became a police village in 1907, but absorbed into Markham Village in 1915.^[1] A non-farm settlement developed on Main Street North and Peter Street from Beech Street to 16th Avenue.^[2] Like Quantztown, the former farm land in the area has given way to new homes. Only a handful of homes on Peter Street, former George Rodd General Store / Mount Joy Post Office and the old Mount Joy Public School (built 1907 and closed 1969^[3]) are left of the former police village. The area north of 16th Avenue to Bur Oak Avenue emerged in the 1980s and not part of the original police village.