Perth County, Ontario

Perth County
County (upper-tier)
County of Perth
Perth County Courthouse, Stratford, Ontario
Motto:  Cultivating Opportunity
Location of Perth County
Coordinates: 43°30′N 81°05′W
Country	Canada
Province	Ontario
Formed	1850
County seat	Stratford
Municipalities	List Municipality of North Perth Township of Perth East Township of Perth South Municipality of West Perth
Area
• Land	2,175.78 km2 (840.07 sq mi)
• Census division	2,218.24 km2 (856.47 sq mi)
	Land area excludes Stratford and St. Marys
Elevation	394 m (1,293 ft)
Population  (2021)
• Total	40,639
• Density	18.7/km2 (48/sq mi)
• Census division	81,565
• Census division density	36.8/km2 (95/sq mi)
	Total excludes Stratford and St. Marys
Time zone	UTC−5 (EST)
• Summer (DST)	UTC−4 (EDT)
Area codes	519 and 226
Website	www.perthcounty.ca

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Perth County is a county and census division in the Canadian province of Ontario in Southwestern Ontario, 100 kilometres (62 mi) west of Toronto. Its population centres are Listowel, Mitchell and Milverton. The City of Stratford and the Town of St. Marys are within the Perth census division, but are administered separately from Perth County. The 2021 population of Perth County was 38,066.