| Statistic | Ajax | Ontario | National |
| Population | 138,303 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 1,972 | 15 | 4 |
| Median age | 37.4 | 40.9 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 73% | 71% | 66% |
| Families w/ kids at home | 56% | 46% | 43% |
| Speak English only | 90.7% | 86.1% | 68.8% |
| Speak French only | 0.1% | 0.3% | 4.5% |
| Data | Percent |
| South Asian | 25.1% |
| Black | 17.8% |
| Filipino | 4.2% |
| All Other Visible Minorities | 3.4% |
| West Asian | 3.0% |
| Data | Percent |
| Jamaica | 4.2% |
| India | 3.9% |
| Sri Lanka | 3.6% |
| Philippines | 3.5% |
| Pakistan | 3.2% |