| Index | St. Clair | Ontario | National | 
| Average School Score | 56.3 | 67.5 | 66.1 | 
| Total public schools | 7 | 7,342 | 17,366 | 
| Index | St. Clair | Ontario | National | 
| No certificate, diploma or degree | 13.0% | 15.9% | 16.7% | 
| High School certificate or equivalent | 86.8% | 84.1% | 83.3% | 
| Apprenticeship or trades certificate | 58.8% | 56.9% | 56.8% | 
| College or other non-university diploma | 44.3% | 51.1% | 47.4% | 
| University certificate or below bachelor | 12.1% | 29.8% | 27.5% | 
| Bachelor's degree | 11.2% | 27.9% | 25.1% | 
| Above bachelor's degree | 2.8% | 9.1% | 8.1% | 
| City | Population | Avg. School Score | National Avg. | 
| Petrolia, ON | 6,108 | 66.6 | 0.6% | 
| St. Clair, ON | 14,919 | 56.3 | 14.9% | 
| City | Population | Avg. School Score | National Avg. | 
| High River, AB | 14,888 | 66.2 | 0.1% | 
| Sooke, BC | 14,780 | 55.0 | 16.8% | 
| Strathmore, AB | 14,778 | 62.6 | 5.4% | 
| West Nipissing / Nipissing Ouest, ON | 14,724 | 63.8 | 3.6% | 
| Lake Country, BC | 15,217 | 60.7 | 8.2% | 
| St. Clair, ON | 14,919 | 56.3 | 14.9% |