| Statistic | Westmount Subdivision | Halifax | Nova Scotia |
| Population | 669 | 451,852 | 978,623 |
| Population density (sq km) | 6,020 | 80 | 18 |
| Median age | 37.9 | 39.9 | 44.8 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 73% | 66% | 67% |
| Families w/ kids at home | 51% | 39% | 36% |
| Speak English only | 82.3% | 86.8% | 89.1% |
| Speak French only | 0.2% | 0.1% | 0.1% |
| Data | Percent |
| Chinese | 3.9% |
| South Asian | 2.1% |
| Black | 1.8% |
| Latin American | 1.1% |
| Multiple Visible Minorities | 0.6% |
| Data | Percent |
| United States | 2.0% |
| United Kingdom | 1.5% |
| Croatia | 1.2% |
| Iraq | 1.1% |
| China | 1.1% |