| Index | Arnold Line | Mississippi | National |
| Average Test Scores | n/a | 40% | 48% |
| Student/Teacher ratio | n/a | 16:1 | 16:1 |
| Total public schools | n/a | 893 | 79,221 |
| Total private schools | n/a | 206 | 24,874 |
| Total post-secondary schools | n/a | 68 | 7,963 |
| Index | Arnold Line | Mississippi | National |
| Completed 8th grade | 93.5% | 78.6% | 84.3% |
| Completed high school | 93.5% | 76.7% | 83.0% |
| Completed some college | 65.8% | 52.5% | 59.4% |
| Completed associate degree | 47.6% | 29.8% | 38.5% |
| Completed bachelors | 41.8% | 21.0% | 30.3% |
| Completed masters | 15.4% | 7.9% | 11.5% |
| Completed professional degree | 6.2% | 2.2% | 3.3% |
| Completed doctorate | 2.0% | 0.9% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Arnold Line. Using the proficiency score averages, the average test scores for Arnold Line, MS schools is n/a. The average student to teacher ratio is n/a. In Arnold Line, MS, an average of 93.5% of students have completed 8th grade and an average of 93.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Petal, MS | 10,624 | 62% | 28.5% |
| Sumrall, MS | 2,276 | 58% | 21.2% |
| Purvis, MS | 2,198 | 49% | 2.1% |
| Hattiesburg, MS | 46,010 | 44% | 8.9% |
| Arnold Line, MS | 1,654 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Sturgis, KY | 1,654 | 52% | 8.3% |
| Rossville, IN | 1,654 | 54% | 11.5% |
| Lakin, KS | 1,654 | 19% | 60.8% |
| Hebron, NE | 1,654 | 65% | 34.4% |
| Cordova, AL | 1,655 | 49% | 2.1% |
| Arnold Line, MS | 1,654 | n/a |
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