| Statistic | Knollsbrook | Ottawa | Ontario |
| Population | 2,746 | 1,058,126 | 14,804,681 |
| Population density (sq km) | 3,414 | 365 | 15 |
| Median age | 43.7 | 39.2 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married couples | 77% | 70% | 71% |
| Families w/ kids at home | 46% | 45% | 46% |
| Speak English only | 71.5% | 59.3% | 86.1% |
| Speak French only | 0.0% | 1.4% | 0.3% |
| Data | Percent |
| Chinese | 5.1% |
| Black | 3.5% |
| Filipino | 2.4% |
| South Asian | 2.3% |
| Southeast Asian | 0.5% |
| Data | Percent |
| Philippines | 2.0% |
| United Kingdom | 1.6% |
| China | 1.6% |
| India | 1.3% |
| United States | 0.9% |
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