Ontario Cities by Population (1 to 20)
Search cities in Ontario, Canada. Find out the population, time zones, current local time and more Ontario facts.
| City | Region | Country | Time Zone | Population | |
|---|---|---|---|---|---|
| Toronto | Ontario | Canada | Eastern Standard Time | 2,600,000 | |
| Ottawa | Ontario | Canada | Eastern Standard Time | 812,129 | |
| Mississauga | Ontario | Canada | Eastern Standard Time | 668,549 | |
| Brampton | Ontario | Canada | Eastern Standard Time | 593,638 | |
| Hamilton | Ontario | Canada | Eastern Standard Time | 519,949 | |
| London | Ontario | Canada | Eastern Standard Time | 346,765 | |
| Markham | Ontario | Canada | Eastern Standard Time | 328,966 | |
| Vaughan | Ontario | Canada | Eastern Standard Time | 306,233 | |
| Windsor | Ontario | Canada | Eastern Standard Time | 278,013 | |
| Kitchener | Ontario | Canada | Eastern Standard Time | 256,885 | |
| Richmond Hill | Ontario | Canada | Eastern Standard Time | 195,022 | |
| Oakville | Ontario | Canada | Eastern Standard Time | 193,832 | |
| Burlington | Ontario | Canada | Eastern Standard Time | 183,314 | |
| Nepean | Ontario | Canada | Eastern Standard Time | 180,000 | |
| Oshawa | Ontario | Canada | Eastern Standard Time | 166,000 | |
| Greater Sudbury | Ontario | Canada | Eastern Standard Time | 157,857 | |
| Barrie | Ontario | Canada | Eastern Standard Time | 141,434 | |
| St. Catharines | Ontario | Canada | Eastern Standard Time | 133,113 | |
| Milton | Ontario | Canada | Eastern Standard Time | 132,979 | |
| Cambridge | Ontario | Canada | Eastern Standard Time | 129,920 |