| Index | Lavaca | Arkansas | National |
| Average Test Scores | n/a | n/a | 48% |
| Student/Teacher ratio | 15:1 | 14:1 | 16:1 |
| Total public schools | 3 | 860 | 79,221 |
| Total private schools | n/a | 165 | 24,874 |
| Total post-secondary schools | n/a | 98 | 7,963 |
| Index | Lavaca | Arkansas | National |
| Completed 8th grade | 80.4% | 80.7% | 84.3% |
| Completed high school | 79.7% | 79.0% | 83.0% |
| Completed some college | 49.6% | 50.5% | 59.4% |
| Completed associate degree | 23.1% | 27.9% | 38.5% |
| Completed bachelors | 14.5% | 21.5% | 30.3% |
| Completed masters | 5.1% | 7.6% | 11.5% |
| Completed professional degree | 0.4% | 2.2% | 3.3% |
| Completed doctorate | 0.0% | 0.9% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Lavaca. Using the proficiency score averages, the average test scores for Lavaca, AR schools is n/a. The average student to teacher ratio is 15:1. In Lavaca, AR, an average of 80.4% of students have completed 8th grade and an average of 79.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Moffett, OK | 140 | 45% | 7.5% |
| Arkoma, OK | 1,912 | 37% | 22.4% |
| Lavaca, AR | 2,592 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| West Union, IA | 2,592 | 69% | 42.4% |
| Lewiston, NY | 2,592 | 38% | 22.1% |
| Castle Rock, WA | 2,593 | 46% | 5.4% |
| Timberville, VA | 2,591 | 65% | 34.0% |
| Gervais, OR | 2,591 | 42% | 12.5% |
| Lavaca, AR | 2,592 | n/a |
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