| Statistic | Blackwell | Sarnia | Ontario |
| Population | 2,036 | 74,477 | 14,804,681 |
| Population density (sq km) | 525 | 449 | 15 |
| Median age | 54.1 | 45.8 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 87% | 68% | 71% |
| Families w/ kids at home | 41% | 36% | 46% |
| Speak English only | 88.7% | 91.9% | 86.1% |
| Speak French only | 0.2% | 0.1% | 0.3% |
| Data | Percent |
| Chinese | 1.4% |
| West Asian | 1.4% |
| Arab | 1.3% |
| South Asian | 0.5% |
| Korean | 0.2% |
| Data | Percent |
| United Kingdom | 6.0% |
| Italy | 2.5% |
| Netherlands | 2.2% |
| United States | 1.3% |
| Other Western Europe | 1.0% |