10 Biggest Cities in Ontario 2022

The largest cities in the province of Ontario

Lake Ontario

The province of Ontario is the most populous and second-largest province in Canada. It is home to the majority of Canadians living east of the Great Lakes, and it contains many natural resources, which have given rise to its diverse economy. The Canadian economy has become increasingly dependent on manufacturing and resource extraction over recent decades. Toronto was created by combining six former municipalities into one.

1) Toronto is the capital of Ontario, Canada and it is the most populous city in Canada. The city is located near Lake Ontario on the northwestern shore of the Bay of Toronto. T-DOT has a population of around 2,741,737 as of 2021. Toronto has been dubbed "the cultural centre" because it is home to many art galleries and a variety of theatre companies as well as being home to sixteen universities within reach from downtown.

2) Ottawa is the capital city of Canada. It has a population of around 1,000,000 people as of 2021. Ottawa sits where the Rideau Canal flows out into the Ottawa River. Parliament Hill's Gothic revival architecture gives the city an old and unique feel. The name "Ottawa" originates from the Algonquin word adawe meaning 'to trade'.

3) Mississauga is a city in the Greater Toronto Area of Ontario, Canada. The city is located on the shores of Lake Ontario and lies southwest of Toronto. Mississauga's official motto is "Leading Today for Tomorrow." The city had a population of around 729,691 as of 2021. Residents of the city are referred to as "Mississaugans".

4) The city of Brampton is a city in the Canadian province of Ontario. It is a suburban city in the Greater Toronto Area (GTA), and one of six municipalities that constitute the Regional Municipality of Peel. As of 2021, the city had an estimated population of 595,931.

5) Hamilton is a city in the Canadian province of Ontario. It is located at the western end of Lake Ontario, where the Niagara Escarpment meets Hamilton Harbour on the Western edge of Lake Ontario. The city has a population of around 539,315 people and it is the fifth-largest city in Ontario. Hamilton is home to several post-secondary institutions such as McMaster University and Mohawk College.

6) London, Ontario is located on the border of Lake Huron and has a population of approximately 388,810 as of 2021. London's economy is driven by manufacturing, transportation, education, retail trade and tourism industries.

7) Markham is a city in the Regional Municipality of York, Ontario, Canada. It is situated on the Rouge River in the Greater Toronto Area and within the regional government's boundaries of York Region. It is Ontario's seventh-largest city with an estimated population of 329,523 as of 2021.

8) Vaughan is a city located in the Regional Municipality of York, in Southern Ontario. It is an upscale suburb of Toronto and gets its name from Benjamin Vaughan, a British commissioner. As of 2021, the city has an estimated population of 309,817.

9) Kitchener is known as "The Flower City" and "The Garden City". It also is the headquarters of the Regional Municipality of Waterloo. It is the 9th largest city in Ontario with an estimated population of 235,721 as of 2021.

10) The city of Windsor, Ontario is located in the southern part of the Canadian province. With an estimated population of around 222,571 people as of 2021, Windsor is one of Canada's most ethnically diverse cities.

Notes: these estimates are based on trends, mortality rates, Canada's continued population increase and other factors.