Cities in Ontario - Best Places to Visit

There are 144 cities in Ontario. Toronto is the most popular city with a population of 2,794,356.

1

Toronto

Largest city in Canada with diverse population

Pop. 2,794,356

2

Niagara Falls, Ontario

City in Ontario, famous for its waterfalls

Pop. 99,818

3

Ottawa

Capital city of Canada

Pop. 1,017,449

4

Hamilton, Ontario

Industrial city in Ontario with diverse economy

Pop. 569,353

5

London, Ontario

City in Ontario, Canada, near Lake Erie

Pop. 422,324

6

Mississauga

City in Ontario known for its multiculturalism

Pop. 717,961

7

Windsor, Ontario

City in Ontario known for its waterfront

Pop. 229,660

8

Kingston, Ontario

City on the St. Lawrence River with historic sites

Pop. 132,485

9

Brampton

City in Ontario, part of Greater Toronto

Pop. 656,480

10

Kitchener, Ontario

Ontario city known for technology and innovation

Pop. 256,885

11

Thunder Bay

City in Ontario, Canada, near Lake Superior

Pop. 108,843

12

Oshawa

Canadian city located in Ontario province

Pop. 175,383

13

Greater Sudbury

City in Ontario, Canada

Pop. 166,004

14

Barrie

Ontario city on Lake Simcoe, Toronto commuter town

Pop. 147,829

15

Guelph

City in Ontario known for its university

Pop. 143,740

16

St. Catharines

City in Ontario, known for its wine region

Pop. 136,803

17

Brantford

City in Ontario, Canada

Pop. 104,688

18

Markham, Ontario

City in Ontario, Canada

Pop. 338,503

19

Sault Ste. Marie, Ontario

City in Ontario located near the Great Lakes

Pop. 72,051

20

Vaughan

City in Ontario, known for Vaughan Mills mall

Pop. 323,103

21

Burlington, Ontario

City in Ontario, Canada, near Lake Ontario

Pop. 186,948

22

Sarnia

City in Ontario with a rich industrial history

Pop. 72,125

23

Belleville, Ontario

City in Ontario with vibrant community

Pop. 50,716

24

Waterloo, Ontario

City in Ontario, Canada

Pop. 104,986

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