| Statistic | Petite Prairie | Varennes | Quebec |
| Population | 2,423 | 21,490 | 8,565,732 |
| Population density (sq km) | 3,855 | 230 | 6 |
| Median age | 45.0 | 42.5 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 47% | 46% | 50% |
| Families w/ kids at home | 38% | 47% | 40% |
| Speak English only | 0.2% | 0.2% | 4.7% |
| Speak French only | 57.6% | 53.0% | 49.5% |
| Data | Percent |
| Black | 0.8% |
| Latin American | 0.6% |
| Multiple Visible Minorities | 0.3% |
| Chinese | 0.1% |
| N/A | 0.0% |
| Data | Percent |
| China | 0.7% |
| France | 0.6% |
| Romania | 0.4% |
| Haiti | 0.3% |
| Mexico | 0.2% |