| Statistic | des Châteaux-d'Eau | Sherbrooke | Quebec |
| Population | 5,772 | 170,686 | 8,565,732 |
| Population density (sq km) | 1,465 | 484 | 6 |
| Median age | 40.6 | 40.4 | 42.6 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 43% | 45% | 50% |
| Families w/ kids at home | 42% | 37% | 40% |
| Speak English only | 0.3% | 1.4% | 4.7% |
| Speak French only | 58.3% | 54.2% | 49.5% |
| Data | Percent |
| Latin American | 0.6% |
| West Asian | 0.4% |
| Arab | 0.4% |
| Black | 0.2% |
| Chinese | 0.0% |
| Data | Percent |
| France | 0.8% |
| Mexico | 0.6% |
| United States | 0.3% |
| Other Western Africa | 0.2% |
| Morocco | 0.2% |