About London
London is a city in Ontario, Canada with a population of 422,324. It is the 15th largest of the 295 cities of 15,000 or more listed in Canada, and the 1,359th largest worldwide. It lies 517 km from Ottawa.
Key Facts
Country
Region
Rank in region
#6of 100
Coordinates
42.983, -81.233
Record updated
4 August 2025
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.