| Index | St. Mary's | Nova Scotia | National |
| Average School Score | n/a | n/a | 66.1 |
| Total public schools | 1 | 364 | 17,366 |
| Index | St. Mary's | Nova Scotia | National |
| No certificate, diploma or degree | 33.0% | 17.9% | 16.7% |
| High School certificate or equivalent | 67.5% | 82.1% | 83.3% |
| Apprenticeship or trades certificate | 40.9% | 56.8% | 56.8% |
| College or other non-university diploma | 30.5% | 47.3% | 47.4% |
| University certificate or below bachelor | 12.3% | 24.8% | 27.5% |
| Bachelor's degree | 10.2% | 22.7% | 25.1% |
| Above bachelor's degree | 5.1% | 7.2% | 8.1% |
| City | Population | Avg. School Score | National Avg. |
| St. Mary's, NS | 2,105 | n/a |
| City | Population | Avg. School Score | National Avg. |
| One Hundred Mile House, BC | 2,112 | 58.0 | 12.3% |
| Mattawa, ON | 2,126 | 54.1 | 18.3% |
| Logan Lake, BC | 2,140 | 57.7 | 12.8% |
| Fruitvale, BC | 2,140 | 57.6 | 12.8% |
| Fox Creek, AB | 2,069 | 61.6 | 6.9% |
| St. Mary's, NS | 2,105 | n/a |