| Statistic | Wiltshire Park | Sarnia | Ontario |
| Population | 2,296 | 74,477 | 14,804,681 |
| Population density (sq km) | 2,602 | 449 | 15 |
| Median age | 41.5 | 45.8 | 40.9 |
| Male/Female ratio | 1.0:1 | 1.1:1 | 1.0:1 |
| Married couples | 77% | 68% | 71% |
| Families w/ kids at home | 44% | 36% | 46% |
| Speak English only | 93.4% | 91.9% | 86.1% |
| Speak French only | 0.0% | 0.1% | 0.3% |
| Data | Percent |
| South Asian | 3.5% |
| Arab | 3.4% |
| Filipino | 1.5% |
| Black | 1.4% |
| Latin American | 1.3% |
| Data | Percent |
| United Kingdom | 3.1% |
| Italy | 2.8% |
| Iraq | 2.1% |
| India | 1.8% |
| Ireland | 1.3% |