| Index | Del Rio | Texas | National |
| Average Test Scores | 42% | 47% | 48% |
| Student/Teacher ratio | 19:1 | 14:1 | 16:1 |
| Total public schools | 16 | 7,418 | 79,221 |
| Total private schools | 4 | 1,267 | 24,874 |
| Total post-secondary schools | 1 | 463 | 7,963 |
| Index | Del Rio | Texas | National |
| Completed 8th grade | 62.8% | 79.3% | 84.3% |
| Completed high school | 60.1% | 77.8% | 83.0% |
| Completed some college | 39.8% | 57.3% | 59.4% |
| Completed associate degree | 23.4% | 34.9% | 38.5% |
| Completed bachelors | 17.3% | 28.1% | 30.3% |
| Completed masters | 4.6% | 9.6% | 11.5% |
| Completed professional degree | 1.1% | 2.6% | 3.3% |
| Completed doctorate | 0.3% | 1.1% | 1.3% |
There are a total of 16 public schools, 4 private schools and 1 post-secondary schools in Del Rio. Using the proficiency score averages, the average test scores for Del Rio, TX schools is 42%. The average student to teacher ratio is 19:1. In Del Rio, TX, an average of 62.8% of students have completed 8th grade and an average of 60.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Del Rio, TX | 36,754 | 42% | 11.8% |
| City | Population | Avg. Test Scores | National Avg. |
| San Juan Capistrano, CA | 36,776 | 44% | 8.0% |
| El Mirage, AZ | 36,729 | 37% | 23.5% |
| Oswego, IL | 36,709 | 37% | 23.2% |
| Cooper City, FL | 36,683 | 77% | 59.7% |
| Panama City, FL | 36,673 | 50% | 4.6% |
| Del Rio, TX | 36,754 | 42% | 11.8% |
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