| Statistic | Stouffville | Whitchurch-Stouffville | Ontario |
| Population | 36,345 | 52,025 | 14,804,681 |
| Population density (sq km) | 2,155 | 247 | 15 |
| Median age | 36.6 | 39.7 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 81% | 81% | 71% |
| Families w/ kids at home | 59% | 54% | 46% |
| Speak English only | 90.5% | 90.5% | 86.1% |
| Speak French only | 0.0% | 0.0% | 0.3% |
| Data | Percent |
| South Asian | 18.9% |
| Chinese | 17.2% |
| Black | 3.0% |
| Filipino | 2.9% |
| Multiple Visible Minorities | 2.5% |
| Data | Percent |
| Sri Lanka | 5.1% |
| China | 4.5% |
| Hong Kong | 3.9% |
| India | 2.5% |
| Philippines | 1.9% |