| Index | Lavaca | Arkansas | National |
| Average Test Scores | 50% | 45% | 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 50%. 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. |
| Greenwood, AR | 9,392 | 64% | 33.7% |
| Branch, AR | 389 | 61% | 26.6% |
| Charleston, AR | 2,483 | 55% | 14.6% |
| Barling, AR | 4,957 | 50% | 3.1% |
| Van Buren, AR | 23,600 | 49% | 2.0% |
| Lavaca, AR | 2,442 | 50% | 4.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Carlisle, KY | 2,443 | 46% | 3.6% |
| Ridgetop, TN | 2,441 | 39% | 18.8% |
| Hallowell, ME | 2,444 | 47% | 2.1% |
| Jacksboro, TN | 2,444 | 36% | 26.0% |
| Trion, GA | 2,440 | 60% | 25.3% |
| Lavaca, AR | 2,442 | 50% | 4.2% |
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