| Statistic | Rosemary | Alberta | National |
| Population | 439 | 4,479,459 | 38,134,230 |
| Population density (sq km) | 746 | 7 | 4 |
| Median age | 31.5 | 37.2 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 72% | 71% | 66% |
| Families w/ kids at home | 47% | 46% | 43% |
| Speak English only | 99.1% | 91.8% | 68.8% |
| Speak French only | 0.0% | 0.1% | 4.5% |
| Data | Percent |
| Latin American | 6.9% |
| Japanese | 5.9% |
| N/A | 0.0% |
| Data | Percent |
| Germany | 3.6% |
| United States | 3.6% |
| Russia | 3.1% |
| El Salvador | 1.7% |
| China | 0.2% |