| Index | Port Lavaca | Texas | National |
| Average Test Scores | 54% | 47% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 6 | 7,418 | 79,221 |
| Total private schools | 2 | 1,267 | 24,874 |
| Total post-secondary schools | n/a | 463 | 7,963 |
| Index | Port Lavaca | Texas | National |
| Completed 8th grade | 74.1% | 79.3% | 84.3% |
| Completed high school | 71.7% | 77.8% | 83.0% |
| Completed some college | 47.0% | 57.3% | 59.4% |
| Completed associate degree | 25.8% | 34.9% | 38.5% |
| Completed bachelors | 17.6% | 28.1% | 30.3% |
| Completed masters | 6.4% | 9.6% | 11.5% |
| Completed professional degree | 1.2% | 2.6% | 3.3% |
| Completed doctorate | 0.6% | 1.1% | 1.3% |
There are a total of 6 public schools, 2 private schools and n/a post-secondary schools in Port Lavaca. Using the proficiency score averages, the average test scores for Port Lavaca, TX schools is 54%. The average student to teacher ratio is 16:1. In Port Lavaca, TX, an average of 74.1% of students have completed 8th grade and an average of 71.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Vanderbilt, TX | 631 | 59% | 23.6% |
| Port O'Connor, TX | 1,139 | 55% | 14.6% |
| Seadrift, TX | 1,590 | 47% | 2.1% |
| Port Lavaca, TX | 12,015 | 54% | 11.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Durham, NH | 12,016 | 76% | 57.8% |
| Babylon, NY | 12,011 | 71% | 47.9% |
| Edgewood, WA | 12,010 | 58% | 21.4% |
| Green River, WY | 12,025 | 59% | 22.6% |
| Hasbrouck Heights, NJ | 12,026 | 64% | 32.8% |
| Port Lavaca, TX | 12,015 | 54% | 11.7% |
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