| Statistic | Quartier Mercier | Montréal | Quebec |
| Population | 14,446 | 1,811,008 | 8,565,732 |
| Population density (sq km) | 314 | 4,984 | 6 |
| Median age | 38.7 | 38.7 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 49% | 54% | 50% |
| Families w/ kids at home | 48% | 41% | 40% |
| Speak English only | 2.2% | 10.2% | 4.7% |
| Speak French only | 44.8% | 29.8% | 49.5% |
| Data | Percent |
| Black | 4.8% |
| Latin American | 1.0% |
| Arab | 0.9% |
| South Asian | 0.5% |
| All Other Visible Minorities | 0.4% |
| Data | Percent |
| Cameroon | 0.8% |
| Congo, The Democratic Republic of The | 0.7% |
| France | 0.6% |
| Algeria | 0.4% |
| Other West Central Asia And Middle East | 0.4% |