| Statistic | Rockwood | Guelph | Ontario |
| Population | 4,175 | 147,931 | 14,804,681 |
| Population density (sq km) | 1,133 | 1,616 | 15 |
| Median age | 45.4 | 37.8 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 79% | 69% | 71% |
| Families w/ kids at home | 48% | 46% | 46% |
| Speak English only | 91.6% | 89.5% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| All Other Visible Minorities | 1.0% |
| Multiple Visible Minorities | 0.6% |
| Black | 0.3% |
| Arab | 0.3% |
| West Asian | 0.3% |
| Data | Percent |
| United Kingdom | 3.5% |
| Germany | 1.1% |
| Ireland | 0.6% |
| Other Southern Europe | 0.5% |
| Trinidad And Tobago | 0.4% |