| Statistic | Sheffield Estates | St. John's | Newfoundland and Labrador |
| Population | 676 | 109,566 | 513,653 |
| Population density (sq km) | 1,438 | 256 | 1 |
| Median age | 45.9 | 39.7 | 46.3 |
| Male/Female ratio | 1.1:1 | 1.1:1 | 1.0:1 |
| Married couples | 79% | 64% | 70% |
| Families w/ kids at home | 52% | 38% | 39% |
| Speak English only | 88.3% | 90.1% | 94.6% |
| Speak French only | 0.0% | 0.0% | 0.0% |
| Data | Percent |
| Black | 2.6% |
| Latin American | 2.2% |
| Arab | 0.3% |
| Chinese | 0.3% |
| All Other Visible Minorities | 0.2% |
| Data | Percent |
| United Kingdom | 1.4% |
| Afghanistan | 0.3% |
| El Salvador | 0.3% |
| Italy | 0.2% |
| Saudi Arabia | 0.2% |