| Statistic | Carleton-sur-Mer | Quebec | National |
| Population | 4,102 | 8,565,732 | 38,134,230 |
| Population density (sq km) | 19 | 6 | 4 |
| Median age | 50.7 | 42.6 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 48% | 50% | 66% |
| Families w/ kids at home | 33% | 40% | 43% |
| Speak English only | 0.2% | 4.7% | 68.8% |
| Speak French only | 73.3% | 49.5% | 4.5% |
| Data | Percent |
| Arab | 0.2% |
| Chinese | 0.2% |
| Latin American | 0.2% |
| All Other Visible Minorities | 0.1% |
| N/A | 0.0% |
| Data | Percent |
| United States | 0.2% |
| Morocco | 0.1% |
| Other Western Europe | 0.1% |
| Germany | 0.1% |
| Other Western Africa | 0.1% |