| Index | Lake Dallas | Texas | National |
| Average Test Scores | 49% | 47% | 48% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 7 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Lake Dallas | Texas | National |
| Completed 8th grade | 87.3% | 79.3% | 84.3% |
| Completed high school | 87.3% | 77.8% | 83.0% |
| Completed some college | 61.7% | 57.3% | 59.4% |
| Completed associate degree | 32.0% | 34.9% | 38.5% |
| Completed bachelors | 27.1% | 28.1% | 30.3% |
| Completed masters | 7.4% | 9.6% | 11.5% |
| Completed professional degree | 1.3% | 2.6% | 3.3% |
| Completed doctorate | 0.7% | 1.1% | 1.3% |
There are a total of 7 public schools, n/a private schools and n/a post-secondary schools in Lake Dallas. Using the proficiency score averages, the average test scores for Lake Dallas, TX schools is 49%. The average student to teacher ratio is 14:1. In Lake Dallas, TX, an average of 87.3% of students have completed 8th grade and an average of 87.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Southlake, TX | 31,684 | 87% | 80.7% |
| Westlake, TX | 1,511 | 85% | 77.1% |
| Trophy Club, TX | 11,904 | 75% | 55.2% |
| Hickory Creek, TX | 4,716 | 74% | 54.2% |
| Flower Mound, TX | 78,854 | 73% | 52.8% |
| Lake Dallas, TX | 8,004 | 49% | 1.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Middleton, ID | 8,005 | 54% | 12.3% |
| Rolesville, NC | 8,002 | 46% | 4.0% |
| Rockwood, VA | 8,008 | 77% | 59.4% |
| Richland Hills, TX | 7,999 | 40% | 17.7% |
| Whitmore Lake, MI | 8,010 | 50% | 3.1% |
| Lake Dallas, TX | 8,004 | 49% | 1.0% |
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