| Statistic | Rue Saint-Antoine | Westmount | Quebec |
| Population | 217 | 22,392 | 8,565,732 |
| Population density (sq km) | 3,230 | 5,264 | 6 |
| Median age | 36.1 | 46.8 | 42.6 |
| Male/Female ratio | 0.9:1 | 1.1:1 | 1.0:1 |
| Married couples | 46% | 74% | 50% |
| Families w/ kids at home | 35% | 45% | 40% |
| Speak English only | 19.3% | 19.8% | 4.7% |
| Speak French only | 7.0% | 2.6% | 49.5% |
| Data | Percent |
| Chinese | 8.6% |
| Black | 8.0% |
| Southeast Asian | 5.9% |
| Japanese | 3.7% |
| Latin American | 2.7% |
| Data | Percent |
| France | 3.7% |
| China | 3.2% |
| Russia | 2.1% |
| Philippines | 2.1% |
| United States | 2.1% |
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