| Index | Frankfort | South Dakota | National |
| Average Test Scores | 42% | 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 | Frankfort | South Dakota | National |
| Completed 8th grade | 75.7% | 89.1% | 84.3% |
| Completed high school | 71.4% | 86.8% | 83.0% |
| Completed some college | 31.4% | 60.4% | 59.4% |
| Completed associate degree | 11.4% | 38.5% | 38.5% |
| Completed bachelors | 4.3% | 27.5% | 30.3% |
| Completed masters | 0.0% | 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 Frankfort. Using the proficiency score averages, the average test scores for Frankfort, SD schools is 42%. The average student to teacher ratio is n/a. In Frankfort, SD, an average of 75.7% of students have completed 8th grade and an average of 71.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Tulare, SD | 254 | 53% | 9.4% |
| Doland, SD | 288 | 44% | 8.9% |
| Redfield, SD | 2,496 | 34% | 29.5% |
| Frankfort, SD | 139 | 42% | 13.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Winifred, MT | 139 | 60% | 25.0% |
| Mackey, IN | 139 | 67% | 39.6% |
| Boston, KY | 138 | 61% | 27.1% |
| Fort Shaw, MT | 138 | 45% | 6.3% |
| Sorrento, FL | 140 | 64% | 33.3% |
| Frankfort, SD | 139 | 42% | 13.2% |
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