The Town of Ajax, Ontario, recorded a population of 126,666 in the 2021 Census, up from 119,677 in 2016. This reflects a 5.8% growth (+6,989 people) in five years. Covering 66.64 km², Ajax has a population density of 1,900.6 residents per km², making it one of the more densely populated communities in the Greater Toronto Area. Ajax combines suburban family living with access to Lake Ontario and major highways, attracting new residents through steady immigration and housing development.
Ajax Town Statistics
- Population, 2021: 126,666
- Population, 2016: 119,677
- Population percentage change, 2016 to 2021: 5.8
- Total private dwellings: 40,275
- Private dwellings occupied by usual residents: 39,488
- Population density per square kilometre: 1,900.6
- Land area in square kilometres: 66.64
Population by Age and Gender
Demographics by Race
| Demographic | Population | Share |
|---|---|---|
| South Asian | 33,055 | 25.9% |
| Chinese | 5,155 | 4.0% |
| Black | 21,210 | 16.6% |
| Filipino | 6,890 | 5.4% |
| Arab | 2,505 | 2.0% |
| Latin American | 1,695 | 1.3% |
| Southeast Asian | 825 | 0.6% |
| West Asian | 3,745 | 2.9% |
| Korean | 10 | 0.0% |
| Japanese | 0 | 0.0% |
| Visible minority, n.i.e. | 3,570 | 2.8% |
| Multiple visible minorities | 4,045 | 3.2% |
| Not a visible minority | 44,690 | 35.1% |
| Total | 127,395 | 100.0% |
Religion of the Population
Income Statistics
FAQ
The population of Ajax in 2021 was 126,666.
Ajax’s population is growing, up 5.8% since 2016.
The median age in Ajax is 38.4 years.
There are 39,488 occupied private dwellings in Ajax.
The leading industries are health care, retail, finance, professional services, and manufacturing.
Source:
- Statistics Canada, 2021 Census of Population.
- Statistics Canada. Table 17-10-0148-01 Population estimates, July 1, by census metropolitan area and census agglomeration, 2021 boundaries

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