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© 2026 STATLAS. Data under CC BY 4.0 from World Bank, GeoNames, Open-Meteo & others.

Indices labeled “modeled” are computed estimates — see methodology.

CitiesOntarioPopulation

Population in Ontario

United States · Ontario profile

Population

171,214

people

World rank

#3492

of 33750

Percentile

90%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric Ontario profile

FAQ

Frequently asked

What is the population in Ontario?

Ontario has a population of 171,214 people. Total resident population.

How does Ontario rank for population?

Ontario ranks #3492 of 33750 cities for population (higher is better).