| Index | Lancaster | Ohio | National |
| Average Test Scores | 61% | 61% | 48% |
| Student/Teacher ratio | 19:1 | 17:1 | 16:1 |
| Total public schools | 16 | 3,650 | 79,221 |
| Total private schools | 8 | 1,000 | 24,874 |
| Total post-secondary schools | 1 | 393 | 7,963 |


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| Index | Lancaster | Ohio | National |
| Completed 8th grade | 84.3% | 86.9% | 84.3% |
| Completed high school | 83.2% | 85.6% | 83.0% |
| Completed some college | 48.1% | 55.7% | 59.4% |
| Completed associate degree | 26.1% | 35.1% | 38.5% |
| Completed bachelors | 16.5% | 26.7% | 30.3% |
| Completed masters | 5.3% | 10.0% | 11.5% |
| Completed professional degree | 1.2% | 2.7% | 3.3% |
| Completed doctorate | 0.4% | 1.1% | 1.3% |
There are a total of 16 public schools, 8 private schools and 1 post-secondary schools in Lancaster. Using the proficiency score averages, the average test scores for Lancaster, OH schools is 61%. The average student to teacher ratio is 19:1. In Lancaster, OH, an average of 84.3% of students have completed 8th grade and an average of 83.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Bremen, OH | 1,477 | 80% | 65.6% |
| Pleasantville, OH | 971 | 80% | 65.6% |
| Carroll, OH | 443 | 76% | 58.3% |
| Logan, OH | 6,677 | 76% | 57.3% |
| Pickerington, OH | 21,257 | 75% | 56.9% |
| Lancaster, OH | 40,438 | 61% | 28.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Westerville, OH | 40,443 | 73% | 51.2% |
| Huber Heights, OH | 40,465 | 56% | 16.8% |
| Covington, KY | 40,466 | 41% | 14.1% |
| Wentzville, MO | 40,407 | 58% | 20.1% |
| Fitchburg, MA | 40,576 | 39% | 18.8% |
| Lancaster, OH | 40,438 | 61% | 28.0% |