| Statistic | Saint-Roch | Québec | Quebec |
| Population | 8,191 | 548,244 | 8,565,732 |
| Population density (sq km) | 5,058 | 1,210 | 6 |
| Median age | 38.7 | 43.1 | 42.6 |
| Male/Female ratio | 0.8:1 | 1.0:1 | 1.0:1 |
| Married couples | 27% | 44% | 50% |
| Families w/ kids at home | 20% | 36% | 40% |
| Speak English only | 0.7% | 0.3% | 4.7% |
| Speak French only | 46.9% | 58.9% | 49.5% |
| Data | Percent |
| Black | 6.3% |
| Southeast Asian | 2.4% |
| Arab | 2.4% |
| Latin American | 1.9% |
| South Asian | 1.8% |
| Data | Percent |
| France | 2.6% |
| Other Eastern Africa | 1.2% |
| Other Southeastern Asia | 1.1% |
| Congo, The Democratic Republic of The | 1.1% |
| Other Western Africa | 0.7% |