| Index | Fairfax | Ohio | National |
| Average Test Scores | n/a | 61% | 48% |
| Student/Teacher ratio | n/a | 17:1 | 16:1 |
| Total public schools | n/a | 3,650 | 79,221 |
| Total private schools | n/a | 1,000 | 24,874 |
| Total post-secondary schools | n/a | 393 | 7,963 |
| Index | Fairfax | Ohio | National |
| Completed 8th grade | 87.9% | 86.9% | 84.3% |
| Completed high school | 87.4% | 85.6% | 83.0% |
| Completed some college | 60.4% | 55.7% | 59.4% |
| Completed associate degree | 40.1% | 35.1% | 38.5% |
| Completed bachelors | 30.2% | 26.7% | 30.3% |
| Completed masters | 8.9% | 10.0% | 11.5% |
| Completed professional degree | 1.5% | 2.7% | 3.3% |
| Completed doctorate | 0.5% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Fairfax. Using the proficiency score averages, the average test scores for Fairfax, OH schools is n/a. The average student to teacher ratio is n/a. In Fairfax, OH, an average of 87.9% of students have completed 8th grade and an average of 87.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Terrace Park, OH | 2,254 | 95% | 97.9% |
| Madeira, OH | 9,211 | 94% | 94.8% |
| Wyoming, OH | 8,540 | 92% | 91.9% |
| Mason, OH | 33,592 | 87% | 81.8% |
| Loveland, OH | 13,911 | 84% | 74.1% |
| Fairfax, OH | 1,735 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Crandon, WI | 1,735 | 31% | 34.7% |
| Gilman, IL | 1,734 | 41% | 15.1% |
| Mexico, NY | 1,734 | 56% | 15.6% |
| Tuckerman, AR | 1,734 | 57% | 18.8% |
| Greenfield, IA | 1,736 | 72% | 50.5% |
| Fairfax, OH | 1,735 | n/a |
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