| Statistic | East Gwillimbury | Ontario | National |
| Population | 25,899 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 114 | 15 | 4 |
| Median age | 42.9 | 40.9 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 78% | 71% | 66% |
| Families w/ kids at home | 52% | 46% | 43% |
| Speak English only | 93.0% | 86.1% | 68.8% |
| Speak French only | 0.1% | 0.3% | 4.5% |
| Data | Percent |
| Chinese | 4.1% |
| South Asian | 2.6% |
| Black | 1.8% |
| West Asian | 1.6% |
| All Other Visible Minorities | 0.7% |
| Data | Percent |
| United Kingdom | 3.3% |
| China | 1.4% |
| Iran | 1.1% |
| Italy | 0.8% |
| United States | 0.7% |