| Index | Brant Lake | 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 | Brant Lake | South Dakota | National |
| Completed 8th grade | 92.5% | 89.1% | 84.3% |
| Completed high school | 92.5% | 86.8% | 83.0% |
| Completed some college | 69.4% | 60.4% | 59.4% |
| Completed associate degree | 34.0% | 38.5% | 38.5% |
| Completed bachelors | 19.7% | 27.5% | 30.3% |
| Completed masters | 13.6% | 8.1% | 11.5% |
| Completed professional degree | 2.0% | 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 Brant Lake. Using the proficiency score averages, the average test scores for Brant Lake, SD schools is n/a. The average student to teacher ratio is n/a. In Brant Lake, SD, an average of 92.5% of students have completed 8th grade and an average of 92.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dell Rapids, SD | 3,678 | 64% | 34.0% |
| Chester, SD | 285 | 60% | 24.5% |
| Colton, SD | 754 | 55% | 15.3% |
| Baltic, SD | 1,169 | 53% | 10.4% |
| Madison, SD | 7,249 | 52% | 8.9% |
| Brant Lake, SD | 66 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Burna, KY | 66 | 53% | 9.9% |
| Pingree, ND | 66 | 40% | 16.7% |
| Humphreys, MO | 66 | 25% | 47.9% |
| Dutch John, UT | 67 | 50% | 4.2% |
| McKinnon, WY | 65 | 50% | 4.2% |
| Brant Lake, SD | 66 | n/a |
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