| Statistic | Castor | Alberta | National |
| Population | 911 | 4,479,459 | 38,134,230 |
| Population density (sq km) | 325 | 7 | 4 |
| Median age | 54.4 | 37.2 | 40.9 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married couples | 71% | 71% | 66% |
| Families w/ kids at home | 28% | 46% | 43% |
| Speak English only | 96.9% | 91.8% | 68.8% |
| Speak French only | 0.0% | 0.1% | 4.5% |
| Data | Percent |
| Filipino | 1.4% |
| Chinese | 0.4% |
| N/A | 0.0% |
| Data | Percent |
| United States | 2.1% |
| United Kingdom | 0.9% |
| Philippines | 0.3% |
| Greece | 0.1% |
| Netherlands | 0.1% |