| Statistic | Old Mill | Toronto | Ontario |
| Population | 3,611 | 3,013,752 | 14,804,681 |
| Population density (sq km) | 6,142 | 4,712 | 15 |
| Median age | 40.6 | 39.3 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 75% | 67% | 71% |
| Families w/ kids at home | 48% | 44% | 46% |
| Speak English only | 78.5% | 85.9% | 86.1% |
| Speak French only | 0.1% | 0.1% | 0.3% |
| Data | Percent |
| South Asian | 4.4% |
| Chinese | 3.2% |
| West Asian | 2.1% |
| Multiple Visible Minorities | 2.0% |
| Latin American | 1.6% |
| Data | Percent |
| Ukraine | 2.5% |
| United Kingdom | 2.3% |
| United States | 2.3% |
| Iran | 1.5% |
| Poland | 1.4% |