Markham has a population of 338,503, making it the 17th largest place we list in Canada. It is in Ontario.
Markham holds 0.84% of Canada's 40,467,728 people. Toronto, the largest place we list there, is 8.3 times its size.
338,503
population
#17
in Canada
Nearby in size
| Place | Region | Population |
|---|---|---|
| Laval | Quebec | 438,366 |
| London | Ontario | 422,324 |
| Etobicoke | Ontario | 365,000 |
| Vaughan | Ontario | 323,103 |
| Gatineau | Quebec | 300,045 |
| Victoria | British Columbia | 289,625 |
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.