| Index | Jefferson | 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 | Jefferson | South Dakota | National |
| Completed 8th grade | 93.7% | 89.1% | 84.3% |
| Completed high school | 89.8% | 86.8% | 83.0% |
| Completed some college | 57.2% | 60.4% | 59.4% |
| Completed associate degree | 33.1% | 38.5% | 38.5% |
| Completed bachelors | 20.2% | 27.5% | 30.3% |
| Completed masters | 3.2% | 8.1% | 11.5% |
| Completed professional degree | 0.5% | 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 Jefferson. Using the proficiency score averages, the average test scores for Jefferson, SD schools is n/a. The average student to teacher ratio is n/a. In Jefferson, SD, an average of 93.7% of students have completed 8th grade and an average of 89.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hinton, IA | 805 | 78% | 62.5% |
| Sergeant Bluff, IA | 4,901 | 76% | 58.0% |
| Ponca, NE | 942 | 73% | 52.6% |
| Elk Point, SD | 2,102 | 62% | 29.5% |
| Sioux City, IA | 82,535 | 62% | 28.8% |
| Jefferson, SD | 677 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Zavalla, TX | 677 | 41% | 15.1% |
| Douglas City, CA | 678 | 70% | 44.8% |
| Humboldt, SD | 676 | 50% | 4.2% |
| Ridge Spring, SC | 676 | 27% | 43.8% |
| Alhambra, IL | 676 | 55% | 14.6% |
| Jefferson, SD | 677 | n/a |
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