| Index | Lancaster | Texas | National |
| Average Test Scores | 39% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 10 | 7,418 | 79,221 |
| Total private schools | 3 | 1,267 | 24,874 |
| Total post-secondary schools | 1 | 463 | 7,963 |
| Index | Lancaster | Texas | National |
| Completed 8th grade | 83.5% | 79.3% | 84.3% |
| Completed high school | 82.8% | 77.8% | 83.0% |
| Completed some college | 58.8% | 57.3% | 59.4% |
| Completed associate degree | 28.0% | 34.9% | 38.5% |
| Completed bachelors | 18.9% | 28.1% | 30.3% |
| Completed masters | 5.1% | 9.6% | 11.5% |
| Completed professional degree | 0.6% | 2.6% | 3.3% |
| Completed doctorate | 0.1% | 1.1% | 1.3% |
There are a total of 10 public schools, 3 private schools and 1 post-secondary schools in Lancaster. Using the proficiency score averages, the average test scores for Lancaster, TX schools is 39%. The average student to teacher ratio is 15:1. In Lancaster, TX, an average of 83.5% of students have completed 8th grade and an average of 82.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ovilla, TX | 4,010 | 64% | 32.3% |
| Sunnyvale, TX | 6,664 | 62% | 28.4% |
| Palmer, TX | 2,540 | 55% | 15.3% |
| Midlothian, TX | 31,533 | 55% | 13.8% |
| Seagoville, TX | 16,726 | 54% | 11.5% |
| Lancaster, TX | 39,264 | 39% | 18.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Milton, GA | 39,252 | 82% | 71.4% |
| Roy, UT | 39,243 | 32% | 33.1% |
| Annapolis, MD | 39,321 | 37% | 22.2% |
| Northglenn, CO | 39,201 | 31% | 34.4% |
| Germantown, TN | 39,196 | 53% | 10.0% |
| Lancaster, TX | 39,264 | 39% | 18.1% |
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