| Index | Long Hollow | South Dakota | National |
| Average Test Scores | n/a | 48% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Long Hollow | South Dakota | National |
| Completed 8th grade | 82.1% | 89.1% | 84.3% |
| Completed high school | 82.1% | 86.8% | 83.0% |
| Completed some college | 54.5% | 60.4% | 59.4% |
| Completed associate degree | 20.5% | 38.5% | 38.5% |
| Completed bachelors | 7.1% | 27.5% | 30.3% |
| Completed masters | 7.1% | 8.1% | 11.5% |
| Completed professional degree | 0.0% | 2.5% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Long Hollow. Using the proficiency score averages, the average test scores for Long Hollow, SD schools is n/a. The average student to teacher ratio is n/a. In Long Hollow, SD, an average of 82.1% of students have completed 8th grade and an average of 82.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Sisseton, SD | 2,539 | 35% | 28.1% |
| Agency Village, SD | 970 | 4% | 91.7% |
| Long Hollow, SD | 395 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Fromberg, MT | 395 | 33% | 30.6% |
| Lucas, KS | 395 | 40% | 17.7% |
| Mannsville, NY | 394 | 50% | 3.1% |
| Bedford, KY | 396 | 34% | 29.7% |
| Blevins, AR | 396 | 36% | 25.5% |
| Long Hollow, SD | 395 | n/a |
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