| Index | Gates Mills | Ohio | National |
| Average Test Scores | 75% | 61% | 48% |
| Student/Teacher ratio | 16:1 | 17:1 | 16:1 |
| Total public schools | 1 | 3,650 | 79,221 |
| Total private schools | 2 | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Gates Mills | Ohio | National |
| Completed 8th grade | 98.7% | 86.9% | 84.3% |
| Completed high school | 98.7% | 85.6% | 83.0% |
| Completed some college | 87.3% | 55.7% | 59.4% |
| Completed associate degree | 74.2% | 35.1% | 38.5% |
| Completed bachelors | 70.9% | 26.7% | 30.3% |
| Completed masters | 36.3% | 10.0% | 11.5% |
| Completed professional degree | 20.6% | 2.7% | 3.3% |
| Completed doctorate | 3.7% | 1.1% | 1.3% |
There are a total of 1 public schools, 2 private schools and n/a post-secondary schools in Gates Mills. Using the proficiency score averages, the average test scores for Gates Mills, OH schools is 75%. The average student to teacher ratio is 16:1. In Gates Mills, OH, an average of 98.7% of students have completed 8th grade and an average of 98.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Solon, OH | 22,858 | 95% | 97.9% |
| Chagrin Falls, OH | 3,935 | 91% | 89.7% |
| Broadview Heights, OH | 19,195 | 90% | 86.5% |
| Pepper Pike, OH | 6,319 | 88% | 83.0% |
| Chardon, OH | 5,168 | 87% | 82.0% |
| Gates Mills, OH | 2,142 | 75% | 55.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Owingsville, KY | 2,142 | 48% | 1.0% |
| Monteagle, TN | 2,142 | 17% | 64.6% |
| Shiner, TX | 2,141 | 68% | 42.2% |
| Waterford, NY | 2,141 | 58% | 21.4% |
| Alpha, NJ | 2,141 | 42% | 12.5% |
| Gates Mills, OH | 2,142 | 75% | 55.2% |
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