| Statistic | O'Leary | Prince Edward Island | National |
| Population | 932 | 160,374 | 38,134,230 |
| Population density (sq km) | 498 | 27 | 4 |
| Median age | 51.6 | 43.7 | 40.9 |
| Male/Female ratio | 1.2:1 | 1.0:1 | 1.0:1 |
| Married couples | 57% | 71% | 66% |
| Families w/ kids at home | 31% | 40% | 43% |
| Speak English only | 93.9% | 86.6% | 68.8% |
| Speak French only | 0.0% | 0.1% | 4.5% |
| Data | Percent |
| N/A | 0.0% |
| Data | Percent |
| Hungary | 0.1% |
| Vietnam | 0.1% |
| Netherlands | 0.1% |
| Philippines | 0.1% |
| N/A | 0.0% |