| Index | Sardinia | Ohio | National |
| Average Test Scores | 70% | 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 | Sardinia | Ohio | National |
| Completed 8th grade | 70.9% | 86.9% | 84.3% |
| Completed high school | 70.1% | 85.6% | 83.0% |
| Completed some college | 39.5% | 55.7% | 59.4% |
| Completed associate degree | 17.2% | 35.1% | 38.5% |
| Completed bachelors | 7.8% | 26.7% | 30.3% |
| Completed masters | 2.8% | 10.0% | 11.5% |
| Completed professional degree | 0.4% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sardinia. Using the proficiency score averages, the average test scores for Sardinia, OH schools is 70%. The average student to teacher ratio is n/a. In Sardinia, OH, an average of 70.9% of students have completed 8th grade and an average of 70.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hillsboro, OH | 6,535 | 72% | 50.4% |
| Hamersville, OH | 739 | 72% | 50.0% |
| Russellville, OH | 716 | 72% | 50.0% |
| Williamsburg, OH | 2,552 | 71% | 46.9% |
| Georgetown, OH | 4,414 | 65% | 34.9% |
| Sardinia, OH | 1,333 | 70% | 44.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Kamiah, ID | 1,334 | 33% | 30.9% |
| Cole Camp, MO | 1,334 | 60% | 25.3% |
| Stamford, NY | 1,334 | 40% | 17.7% |
| Des Arc, AR | 1,334 | 66% | 37.0% |
| Ortonville, MI | 1,334 | 46% | 3.9% |
| Sardinia, OH | 1,333 | 70% | 44.8% |
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