| Statistic | Westport | Ontario | National |
| Population | 637 | 14,804,681 | 38,134,230 |
| Population density (sq km) | 300 | 15 | 4 |
| Median age | 57.3 | 40.9 | 40.9 |
| Male/Female ratio | 1.3:1 | 1.0:1 | 1.0:1 |
| Married couples | 70% | 71% | 66% |
| Families w/ kids at home | 33% | 46% | 43% |
| Speak English only | 91.4% | 86.1% | 68.8% |
| Speak French only | 0.0% | 0.3% | 4.5% |
| Data | Percent |
| N/A | 0.0% |
| Data | Percent |
| United Kingdom | 4.3% |
| United States | 2.4% |
| Ireland | 1.4% |
| Italy | 1.0% |
| Australia | 0.9% |