| Index | Cotulla | Texas | National |
| Average Test Scores | 38% | 47% | 48% |
| Student/Teacher ratio | 11:1 | 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 | Cotulla | Texas | National |
| Completed 8th grade | 68.2% | 79.3% | 84.3% |
| Completed high school | 62.0% | 77.8% | 83.0% |
| Completed some college | 33.5% | 57.3% | 59.4% |
| Completed associate degree | 21.1% | 34.9% | 38.5% |
| Completed bachelors | 19.0% | 28.1% | 30.3% |
| Completed masters | 5.6% | 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 7 public schools, n/a private schools and n/a post-secondary schools in Cotulla. Using the proficiency score averages, the average test scores for Cotulla, TX schools is 38%. The average student to teacher ratio is 11:1. In Cotulla, TX, an average of 68.2% of students have completed 8th grade and an average of 62.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cotulla, TX | 4,160 | 38% | 20.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Breese, IL | 4,160 | 54% | 11.8% |
| North Pembroke, MA | 4,159 | 71% | 46.9% |
| Liberty, NY | 4,162 | 51% | 6.3% |
| Jasper, FL | 4,157 | 42% | 11.8% |
| McMurray, PA | 4,167 | 88% | 83.6% |
| Cotulla, TX | 4,160 | 38% | 20.5% |
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