| Index | Lower Brule | South Dakota | National |
| Average Test Scores | 7% | 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 |
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| Index | Lower Brule | South Dakota | National |
| Completed 8th grade | 73.7% | 89.1% | 84.3% |
| Completed high school | 68.4% | 86.8% | 83.0% |
| Completed some college | 45.2% | 60.4% | 59.4% |
| Completed associate degree | 17.6% | 38.5% | 38.5% |
| Completed bachelors | 6.8% | 27.5% | 30.3% |
| Completed masters | 2.2% | 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 Lower Brule. Using the proficiency score averages, the average test scores for Lower Brule, SD schools is 7%. The average student to teacher ratio is n/a. In Lower Brule, SD, an average of 73.7% of students have completed 8th grade and an average of 68.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Kennebec, SD | 344 | 50% | 3.6% |
| Lower Brule, SD | 971 | 7% | 86.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Pleasantville, OH | 971 | 80% | 65.6% |
| Caldwell, KS | 971 | 30% | 38.0% |
| Dollar Bay, MI | 971 | 40% | 17.7% |
| Poplar, MT | 971 | 9% | 81.5% |
| Spearville, KS | 970 | 46% | 4.7% |
| Lower Brule, SD | 971 | 7% | 86.5% |
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