| Statistic | Cathcart Boulevard | Sarnia | Ontario |
| Population | 1,651 | 74,477 | 14,804,681 |
| Population density (sq km) | 1,718 | 449 | 15 |
| Median age | 47.5 | 45.8 | 40.9 |
| Male/Female ratio | 0.9:1 | 1.1:1 | 1.0:1 |
| Married couples | 81% | 68% | 71% |
| Families w/ kids at home | 39% | 36% | 46% |
| Speak English only | 91.2% | 91.9% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| Arab | 2.4% |
| Black | 1.8% |
| Filipino | 1.0% |
| Chinese | 1.0% |
| West Asian | 0.9% |
| Data | Percent |
| United Kingdom | 2.9% |
| India | 1.1% |
| Other Eastern Europe | 1.1% |
| United States | 1.0% |
| Netherlands | 1.0% |