About Gloucester
Gloucester is a city in Ontario, Canada with a population of 150,012. It is the 34th largest of the 295 cities of 15,000 or more listed in Canada, and the 3,780th largest worldwide. It lies 8 km from Ottawa.
Key Facts
Country
Region
Rank in region
#18of 100
Coordinates
45.350, -75.633
Record updated
12 November 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.