| Statistic | Summerhill | Toronto | Ontario |
| Population | 4,972 | 3,013,752 | 14,804,681 |
| Population density (sq km) | 6,335 | 4,712 | 15 |
| Median age | 48.5 | 39.3 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.1:1 | 1.0:1 |
| Married couples | 72% | 67% | 71% |
| Families w/ kids at home | 34% | 44% | 46% |
| Speak English only | 79.3% | 85.9% | 86.1% |
| Speak French only | 0.1% | 0.1% | 0.3% |
| Data | Percent |
| South Asian | 3.2% |
| Chinese | 2.9% |
| Latin American | 0.9% |
| Black | 0.9% |
| Filipino | 0.8% |
| Data | Percent |
| United States | 3.2% |
| United Kingdom | 3.1% |
| India | 1.2% |
| China | 1.0% |
| Italy | 0.9% |