| Index | Merkel | Texas | National |
| Average Test Scores | 41% | 47% | 48% |
| Student/Teacher ratio | 12:1 | 14:1 | 16:1 |
| Total public schools | 5 | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |

| Index | Merkel | Texas | National |
| Completed 8th grade | 75.6% | 79.3% | 84.3% |
| Completed high school | 72.9% | 77.8% | 83.0% |
| Completed some college | 43.8% | 57.3% | 59.4% |
| Completed associate degree | 20.7% | 34.9% | 38.5% |
| Completed bachelors | 10.5% | 28.1% | 30.3% |
| Completed masters | 3.3% | 9.6% | 11.5% |
| Completed professional degree | 0.6% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of 5 public schools, n/a private schools and n/a post-secondary schools in Merkel. Using the proficiency score averages, the average test scores for Merkel, TX schools is 41%. The average student to teacher ratio is 12:1. In Merkel, TX, an average of 75.6% of students have completed 8th grade and an average of 72.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Buffalo Gap, TX | 623 | 67% | 39.6% |
| Hawley, TX | 463 | 39% | 18.4% |
| Trent, TX | 195 | 37% | 22.9% |
| Merkel, TX | 2,691 | 41% | 14.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Corinth, NY | 2,690 | 56% | 15.6% |
| Kinder, LA | 2,692 | 83% | 72.6% |
| Gap, PA | 2,692 | 55% | 13.5% |
| Bolivar Peninsula, TX | 2,692 | 50% | 3.1% |
| Tool, TX | 2,689 | 72% | 50.0% |
| Merkel, TX | 2,691 | 41% | 14.2% |