| Statistic | Whitby | Ontario | National |
| Population | 142,607 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 943 | 15 | 4 |
| Median age | 39.4 | 40.9 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 74% | 71% | 66% |
| Families w/ kids at home | 55% | 46% | 43% |
| Speak English only | 90.5% | 86.1% | 68.8% |
| Speak French only | 0.1% | 0.3% | 4.5% |
| Data | Percent |
| Black | 9.7% |
| South Asian | 9.1% |
| Chinese | 2.9% |
| Filipino | 2.0% |
| Multiple Visible Minorities | 1.8% |
| Data | Percent |
| United Kingdom | 3.3% |
| Jamaica | 1.9% |
| India | 1.6% |
| Philippines | 1.3% |
| Pakistan | 1.2% |