| 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 | 2,592 | 35% | 28.1% |
| Agency Village, SD | 1,008 | 4% | 91.7% |
| Long Hollow, SD | 411 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Lubec, ME | 411 | 70% | 45.8% |
| Powers, MI | 411 | 55% | 14.1% |
| Sheep Springs, NM | 411 | 10% | 79.2% |
| Latexo, TX | 411 | 45% | 7.3% |
| Morrison, CO | 410 | 53% | 10.9% |
| Long Hollow, SD | 411 | n/a |