| Index | Terrell | Texas | National |
| Average Test Scores | 34% | 47% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 8 | 7,418 | 79,221 |
| Total private schools | 4 | 1,267 | 24,874 |
| Total post-secondary schools | 1 | 463 | 7,963 |
| Index | Terrell | Texas | National |
| Completed 8th grade | 73.2% | 79.3% | 84.3% |
| Completed high school | 71.3% | 77.8% | 83.0% |
| Completed some college | 44.9% | 57.3% | 59.4% |
| Completed associate degree | 21.6% | 34.9% | 38.5% |
| Completed bachelors | 15.0% | 28.1% | 30.3% |
| Completed masters | 3.9% | 9.6% | 11.5% |
| Completed professional degree | 1.3% | 2.6% | 3.3% |
| Completed doctorate | 1.1% | 1.1% | 1.3% |
There are a total of 8 public schools, 4 private schools and 1 post-secondary schools in Terrell. Using the proficiency score averages, the average test scores for Terrell, TX schools is 34%. The average student to teacher ratio is 13:1. In Terrell, TX, an average of 73.2% of students have completed 8th grade and an average of 71.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Heath, TX | 9,069 | 69% | 43.8% |
| Rockwall, TX | 45,168 | 63% | 30.8% |
| Fate, TX | 14,300 | 60% | 24.0% |
| Forney, TX | 23,871 | 59% | 22.5% |
| Seagoville, TX | 16,726 | 54% | 11.5% |
| Terrell, TX | 18,513 | 34% | 28.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Durant, OK | 18,516 | 40% | 17.5% |
| Winchester, KY | 18,520 | 53% | 10.7% |
| Brookfield, IL | 18,520 | 43% | 9.9% |
| Concord, MO | 18,521 | 41% | 14.6% |
| Milledgeville, GA | 18,526 | 24% | 50.0% |
| Terrell, TX | 18,513 | 34% | 28.6% |
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