| Index | Groton | South Dakota | National |
| Average Test Scores | 70% | 48% | 48% |
| Student/Teacher ratio | 14:1 | 14:1 | 16:1 |
| Total public schools | 3 | 340 | 79,221 |
| Total private schools | n/a | 76 | 24,874 |
| Total post-secondary schools | n/a | 25 | 7,963 |
| Index | Groton | South Dakota | National |
| Completed 8th grade | 90.3% | 89.1% | 84.3% |
| Completed high school | 89.3% | 86.8% | 83.0% |
| Completed some college | 61.8% | 60.4% | 59.4% |
| Completed associate degree | 43.1% | 38.5% | 38.5% |
| Completed bachelors | 28.6% | 27.5% | 30.3% |
| Completed masters | 5.8% | 8.1% | 11.5% |
| Completed professional degree | 1.4% | 2.5% | 3.3% |
| Completed doctorate | 0.5% | 1.2% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Groton. Using the proficiency score averages, the average test scores for Groton, SD schools is 70%. The average student to teacher ratio is 14:1. In Groton, SD, an average of 90.3% of students have completed 8th grade and an average of 89.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Langford, SD | 525 | 48% | 0.7% |
| Groton, SD | 1,842 | 70% | 45.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Oroville, WA | 1,842 | 41% | 15.1% |
| Fort Hancock, TX | 1,842 | 39% | 19.1% |
| South Paris, ME | 1,842 | 29% | 40.6% |
| Waterville, MN | 1,841 | 69% | 42.7% |
| Arkoma, OK | 1,841 | 37% | 22.2% |
| Groton, SD | 1,842 | 70% | 45.1% |
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