| Index | Ennis | Texas | National |
| Average Test Scores | 44% | 47% | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 9 | 7,418 | 79,221 |
| Total private schools | 1 | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Ennis | Texas | National |
| Completed 8th grade | 71.3% | 79.3% | 84.3% |
| Completed high school | 67.7% | 77.8% | 83.0% |
| Completed some college | 43.8% | 57.3% | 59.4% |
| Completed associate degree | 20.8% | 34.9% | 38.5% |
| Completed bachelors | 14.6% | 28.1% | 30.3% |
| Completed masters | 4.1% | 9.6% | 11.5% |
| Completed professional degree | 1.4% | 2.6% | 3.3% |
| Completed doctorate | 0.9% | 1.1% | 1.3% |
There are a total of 9 public schools, 1 private schools and n/a post-secondary schools in Ennis. Using the proficiency score averages, the average test scores for Ennis, TX schools is 44%. The average student to teacher ratio is 15:1. In Ennis, TX, an average of 71.3% of students have completed 8th grade and an average of 67.7% 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% |
| Scurry, TX | 442 | 48% | 0.3% |
| Red Oak, TX | 13,010 | 48% | 0.9% |
| Ennis, TX | 19,917 | 44% | 7.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Parma Heights, OH | 19,916 | 55% | 14.6% |
| Fort Mill, SC | 19,920 | 72% | 49.1% |
| Lake Zurich, IL | 19,912 | 55% | 15.4% |
| Sand Springs, OK | 19,912 | 35% | 26.4% |
| Snellville, GA | 19,923 | 49% | 1.4% |
| Ennis, TX | 19,917 | 44% | 7.7% |
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