About Thunder Bay
Thunder Bay is a city in Ontario, Canada with a population of 108,843. It is the 62nd largest of the 295 cities of 15,000 or more listed in Canada, and the 5,281st largest worldwide. It lies 1,080 km from Ottawa.
Key Facts
Country
Region
Rank in region
#30of 100
Elevation
188 m
Approximate — modelled, not surveyed
Time zone
America/Toronto
Coordinates
48.382, -89.250
Record updated
2025-08-04
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 295 in CanadaClosest listed cities by great-circle distance from the city centre.