| Index | Mount Vernon | South Dakota | National |
| Average Test Scores | 48% | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Mount Vernon | South Dakota | National |
| Completed 8th grade | 89.2% | 89.1% | 84.3% |
| Completed high school | 85.4% | 86.8% | 83.0% |
| Completed some college | 53.5% | 60.4% | 59.4% |
| Completed associate degree | 29.2% | 38.5% | 38.5% |
| Completed bachelors | 19.6% | 27.5% | 30.3% |
| Completed masters | 2.3% | 8.1% | 11.5% |
| Completed professional degree | 0.6% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Mount Vernon. Using the proficiency score averages, the average test scores for Mount Vernon, SD schools is 48%. The average student to teacher ratio is n/a. In Mount Vernon, SD, an average of 89.2% of students have completed 8th grade and an average of 85.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Stickney, SD | 265 | 70% | 44.8% |
| Ethan, SD | 328 | 65% | 35.2% |
| Mitchell, SD | 15,599 | 52% | 8.7% |
| Plankinton, SD | 709 | 39% | 18.2% |
| Mount Vernon, SD | 500 | 48% | 0.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Enterprise, MS | 500 | 69% | 42.7% |
| Fairgrove, MI | 500 | 25% | 49.0% |
| Warner, SD | 500 | 72% | 50.3% |
| Mandaree, ND | 500 | 21% | 56.3% |
| De Beque, CO | 500 | 30% | 38.5% |
| Mount Vernon, SD | 500 | 48% | 0.7% |
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