| Index | Southlake | Texas | National |
| Average Test Scores | 87% | 47% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 2 | 7,418 | 79,221 |
| Total private schools | 1 | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Southlake | Texas | National |
| Completed 8th grade | 97.8% | 79.3% | 84.3% |
| Completed high school | 97.7% | 77.8% | 83.0% |
| Completed some college | 89.6% | 57.3% | 59.4% |
| Completed associate degree | 71.8% | 34.9% | 38.5% |
| Completed bachelors | 67.1% | 28.1% | 30.3% |
| Completed masters | 25.6% | 9.6% | 11.5% |
| Completed professional degree | 8.1% | 2.6% | 3.3% |
| Completed doctorate | 1.6% | 1.1% | 1.3% |
There are a total of 2 public schools, 1 private schools and n/a post-secondary schools in Southlake. Using the proficiency score averages, the average test scores for Southlake, TX schools is 87%. The average student to teacher ratio is 16:1. In Southlake, TX, an average of 97.8% of students have completed 8th grade and an average of 97.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Westlake, TX | 1,549 | 85% | 77.1% |
| Trophy Club, TX | 12,312 | 75% | 55.2% |
| Hickory Creek, TX | 4,828 | 74% | 54.2% |
| Flower Mound, TX | 81,609 | 73% | 52.8% |
| Coppell, TX | 42,647 | 72% | 50.2% |
| Southlake, TX | 32,343 | 87% | 80.7% |
| City | Population | Avg. Test Scores | National Avg. |
| American Fork, UT | 32,330 | 45% | 5.7% |
| Needham, MA | 32,325 | 74% | 54.8% |
| Garfield, NJ | 32,363 | 50% | 4.3% |
| West Bend, WI | 32,289 | 48% | 0.7% |
| Saratoga Springs, UT | 32,406 | 47% | 2.8% |
| Southlake, TX | 32,343 | 87% | 80.7% |
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