| Index | Duffins Bay | Ajax | Ontario |
| Average School Score | 60.1 | 69.3 | 67.5 |
| Total public schools | 3 | 56 | 7,342 |
| Index | Duffins Bay | Ajax | Ontario |
| No certificate, diploma or degree | 13.0% | 14.0% | 15.9% |
| High School certificate or equivalent | 86.9% | 86.3% | 84.1% |
| Apprenticeship or trades certificate | 52.8% | 57.4% | 56.9% |
| College or other non-university diploma | 47.0% | 52.1% | 51.1% |
| University certificate or below bachelor | 21.7% | 28.0% | 29.8% |
| Bachelor's degree | 19.6% | 25.8% | 27.9% |
| Above bachelor's degree | 5.4% | 6.7% | 9.1% |
| City | Population | Avg. School Score | National Avg. |
| Markham, ON | 359,111 | 76.6 | 15.9% |
| Whitby, ON | 142,607 | 74.6 | 12.7% |
| Pickering, ON | 96,267 | 73.8 | 11.6% |
| Oshawa, ON | 176,009 | 67.1 | 1.5% |
| Ajax, ON | 138,303 | 69.3 | 4.7% |
| City | Population | Avg. School Score | National Avg. |
| Cambridge, ON | 140,221 | 64.0 | 3.2% |
| St. Catharines, ON | 140,913 | 75.6 | 14.3% |
| Milton, ON | 142,128 | 70.9 | 7.2% |
| Whitby, ON | 142,607 | 74.6 | 12.7% |
| Kingston, ON | 132,155 | 64.2 | 2.9% |
| Ajax, ON | 138,303 | 69.3 | 4.7% |
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