Markham Population 2026
Markham has a population of 338,503, making it the #17 biggest city in 🇨🇦 Canada, located in Ontario. Roughly 0.8% of Canada's population lives here. It is about 8.3× smaller than Toronto, the country's biggest city.
Population (city proper)
338,503
Rank in Canada
#17
Coordinates
43.87°N, 79.27°W
~168 m elevation · America/Toronto
Distance to capital (Ottawa)
330 km
205 miles, straight line
Other big cities in Ontario
Cities near Markham
- Pickering91,771 people · ~11 km away
- Richmond Hill202,022 people · ~14 km away
- Willowdale79,440 people · ~15 km away
- Ajax119,677 people · ~19 km away
- Vaughan323,103 people · ~19 km away
- Toronto2,794,356 people · ~21 km away
FAQ
What is the population of Markham?
Markham has a population of 338,503 (city proper, latest official figure via GeoNames), making it the #17 biggest city in Canada.
What region is Markham in?
Markham is located in Ontario, Canada.
Is Markham the capital of Canada?
No, the capital of Canada is Ottawa, about 330 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.