| Statistic | Brock | Ontario | National |
| Population | 12,406 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 29 | 15 | 4 |
| Median age | 46.8 | 40.9 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 68% | 71% | 66% |
| Families w/ kids at home | 40% | 46% | 43% |
| Speak English only | 95.2% | 86.1% | 68.8% |
| Speak French only | 0.0% | 0.3% | 4.5% |
| Data | Percent |
| South Asian | 1.0% |
| Black | 0.5% |
| Chinese | 0.5% |
| Korean | 0.4% |
| Multiple Visible Minorities | 0.3% |
| Data | Percent |
| United Kingdom | 2.9% |
| United States | 0.7% |
| Germany | 0.6% |
| Netherlands | 0.4% |
| Other West Central Asia And Middle East | 0.4% |