| Statistic | Discovery Bay | Ajax | Ontario |
| Population | 4,025 | 138,303 | 14,804,681 |
| Population density (sq km) | 1,439 | 1,972 | 15 |
| Median age | 47.4 | 37.4 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 75% | 73% | 71% |
| Families w/ kids at home | 49% | 56% | 46% |
| Speak English only | 91.9% | 90.7% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| Black | 6.2% |
| South Asian | 4.4% |
| Multiple Visible Minorities | 2.1% |
| Filipino | 2.0% |
| Latin American | 1.9% |
| Data | Percent |
| United Kingdom | 5.9% |
| Philippines | 1.5% |
| Jamaica | 1.3% |
| India | 1.1% |
| United States | 1.0% |