| Index | South Lyon | Michigan | National |
| Average Test Scores | 60% | 42% | 48% |
| Student/Teacher ratio | 19:1 | 22:1 | 16:1 |
| Total public schools | 9 | 3,421 | 79,221 |
| Total private schools | 1 | 835 | 24,874 |
| Total post-secondary schools | n/a | 196 | 7,963 |

| Index | South Lyon | Michigan | National |
| Completed 8th grade | 90.0% | 86.9% | 84.3% |
| Completed high school | 87.5% | 85.9% | 83.0% |
| Completed some college | 68.2% | 60.3% | 59.4% |
| Completed associate degree | 44.1% | 36.5% | 38.5% |
| Completed bachelors | 36.9% | 27.4% | 30.3% |
| Completed masters | 12.0% | 10.7% | 11.5% |
| Completed professional degree | 1.4% | 2.8% | 3.3% |
| Completed doctorate | 0.7% | 1.1% | 1.3% |
There are a total of 9 public schools, 1 private schools and n/a post-secondary schools in South Lyon. Using the proficiency score averages, the average test scores for South Lyon, MI schools is 60%. The average student to teacher ratio is 19:1. In South Lyon, MI, an average of 90.0% of students have completed 8th grade and an average of 87.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dexter, MI | 4,813 | 68% | 42.4% |
| Northville, MI | 6,168 | 68% | 41.4% |
| Novi, MI | 62,295 | 67% | 38.9% |
| Ann Arbor, MI | 125,691 | 62% | 28.5% |
| Plymouth, MI | 9,363 | 60% | 25.2% |
| South Lyon, MI | 12,155 | 60% | 24.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Richfield, WI | 12,159 | 58% | 20.5% |
| Stony Brook, NY | 12,162 | 75% | 55.2% |
| Salem, OH | 12,141 | 68% | 41.9% |
| Glen Rock, NJ | 12,170 | 81% | 67.9% |
| Webb City, MO | 12,139 | 65% | 35.2% |
| South Lyon, MI | 12,155 | 60% | 24.6% |