| Index | Petronila | 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 | Petronila | Texas | National |
| Completed 8th grade | 69.2% | 79.3% | 84.3% |
| Completed high school | 69.2% | 77.8% | 83.0% |
| Completed some college | 62.6% | 57.3% | 59.4% |
| Completed associate degree | 31.8% | 34.9% | 38.5% |
| Completed bachelors | 22.4% | 28.1% | 30.3% |
| Completed masters | 9.3% | 9.6% | 11.5% |
| Completed professional degree | 0.9% | 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 Petronila. Using the proficiency score averages, the average test scores for Petronila, TX schools is n/a. The average student to teacher ratio is n/a. In Petronila, TX, an average of 69.2% of students have completed 8th grade and an average of 69.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Driscoll, TX | 712 | 62% | 29.2% |
| Bishop, TX | 3,085 | 60% | 25.3% |
| Banquete, TX | 520 | 57% | 17.7% |
| Corpus Christi, TX | 326,332 | 47% | 2.7% |
| Kingsville, TX | 25,367 | 45% | 7.3% |
| Petronila, TX | 89 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Jackson Junction, IA | 89 | 67% | 39.6% |
| Powhattan, KS | 89 | 20% | 58.3% |
| Chuathbaluk, AK | 89 | 50% | 4.2% |
| Lund, NV | 89 | 25% | 48.4% |
| Costilla, NM | 89 | 40% | 16.7% |
| Petronila, TX | 89 | n/a |
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