St. Thomas Population 2026
St. Thomas has a population of 38,909, making it the #146 biggest city in 🇨🇦 Canada, located in Ontario. Roughly 0.1% of Canada's population lives here. It is about 72× smaller than Toronto, the country's biggest city.
Population (city proper)
38,909
Rank in Canada
#146
Coordinates
42.77°N, 81.18°W
~232 m elevation · America/Toronto
Distance to capital (Ottawa)
527 km
327 miles, straight line
Other big cities in Ontario
Cities near St. Thomas
- London422,324 people · ~24 km away
- Tillsonburg18,615 people · ~38 km away
- Strathroy23,871 people · ~41 km away
- Woodstock40,404 people · ~53 km away
- Norfolk County60,847 people · ~65 km away
- Stratford31,465 people · ~69 km away
FAQ
What is the population of St. Thomas?
St. Thomas has a population of 38,909 (city proper, latest official figure via GeoNames), making it the #146 biggest city in Canada.
What region is St. Thomas in?
St. Thomas is located in Ontario, Canada.
Is St. Thomas the capital of Canada?
No, the capital of Canada is Ottawa, about 527 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.