| Index | Mertens | Texas | National |
| Average Test Scores | n/a | 47% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 7,418 | 79,221 |
| Total private schools | n/a | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Mertens | Texas | National |
| Completed 8th grade | 91.1% | 79.3% | 84.3% |
| Completed high school | 88.9% | 77.8% | 83.0% |
| Completed some college | 54.4% | 57.3% | 59.4% |
| Completed associate degree | 17.8% | 34.9% | 38.5% |
| Completed bachelors | 10.0% | 28.1% | 30.3% |
| Completed masters | 2.2% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 2.6% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Mertens. Using the proficiency score averages, the average test scores for Mertens, TX schools is n/a. The average student to teacher ratio is n/a. In Mertens, TX, an average of 91.1% of students have completed 8th grade and an average of 88.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Abbott, TX | 354 | 67% | 39.6% |
| Penelope, TX | 124 | 45% | 7.3% |
| Frost, TX | 882 | 42% | 12.5% |
| Italy, TX | 2,264 | 42% | 12.5% |
| Blooming Grove, TX | 725 | 41% | 14.6% |
| Mertens, TX | 124 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| West Glacier, MT | 124 | 60% | 25.0% |
| Nicolaus, CA | 124 | 40% | 17.7% |
| Drummond, WI | 124 | 42% | 13.5% |
| Weott, CA | 124 | 35% | 27.1% |
| Penelope, TX | 124 | 45% | 7.3% |
| Mertens, TX | 124 | n/a |
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