| Index | Errol | Sarnia | Ontario |
| Average School Score | 70.3 | 63.8 | 67.5 |
| Total public schools | 3 | 37 | 7,342 |
| Index | Errol | Sarnia | Ontario |
| No certificate, diploma or degree | 12.0% | 15.0% | 15.9% |
| High School certificate or equivalent | 87.5% | 85.5% | 84.1% |
| Apprenticeship or trades certificate | 59.5% | 55.6% | 56.9% |
| College or other non-university diploma | 51.4% | 46.2% | 51.1% |
| University certificate or below bachelor | 20.8% | 18.2% | 29.8% |
| Bachelor's degree | 20.8% | 17.1% | 27.9% |
| Above bachelor's degree | 4.7% | 4.8% | 9.1% |
| City | Population | Avg. School Score | National Avg. |
| Plympton-Wyoming, ON | 8,517 | 72.3 | 9.2% |
| Petrolia, ON | 6,108 | 66.6 | 0.6% |
| Point Edward, ON | 2,173 | 54.2 | 18.1% |
| Sarnia, ON | 74,477 | 63.8 | 3.5% |
| City | Population | Avg. School Score | National Avg. |
| Wood Buffalo, AB | 74,298 | 61.4 | 7.2% |
| Sault Ste. Marie, ON | 74,249 | 59.9 | 9.4% |
| St. Albert, AB | 73,103 | 68.3 | 3.3% |
| Norfolk County, ON | 70,339 | 64.7 | 2.2% |
| Airdrie, AB | 79,163 | 62.3 | 5.8% |
| Sarnia, ON | 74,477 | 63.8 | 3.5% |
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