| Index | Garrett | Texas | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Garrett | Texas | National |
| Completed 8th grade | 55.5% | 79.3% | 84.3% |
| Completed high school | 52.6% | 77.8% | 83.0% |
| Completed some college | 25.6% | 57.3% | 59.4% |
| Completed associate degree | 8.7% | 34.9% | 38.5% |
| Completed bachelors | 6.0% | 28.1% | 30.3% |
| Completed masters | 2.7% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 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 Garrett. Using the proficiency score averages, the average test scores for Garrett, TX schools is n/a. The average student to teacher ratio is n/a. In Garrett, TX, an average of 55.5% of students have completed 8th grade and an average of 52.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Ovilla, TX | 4,010 | 64% | 32.3% |
| Palmer, TX | 2,540 | 55% | 15.3% |
| Waxahachie, TX | 36,735 | 52% | 8.6% |
| Red Oak, TX | 13,010 | 48% | 0.9% |
| Ennis, TX | 19,917 | 44% | 7.7% |
| Garrett, TX | 924 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Lewisburg, KY | 924 | 50% | 4.2% |
| Walthill, NE | 923 | 15% | 69.3% |
| McLeansville, NC | 925 | 31% | 36.2% |
| White, GA | 923 | 45% | 6.3% |
| Powers, OR | 922 | 33% | 32.3% |
| Garrett, TX | 924 | n/a |
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