| Index | De Smet | South Dakota | National |
| Average Test Scores | 61% | 48% | 48% |
| Student/Teacher ratio | 12:1 | 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 | De Smet | South Dakota | National |
| Completed 8th grade | 93.3% | 89.1% | 84.3% |
| Completed high school | 89.1% | 86.8% | 83.0% |
| Completed some college | 53.0% | 60.4% | 59.4% |
| Completed associate degree | 27.8% | 38.5% | 38.5% |
| Completed bachelors | 22.4% | 27.5% | 30.3% |
| Completed masters | 5.1% | 8.1% | 11.5% |
| Completed professional degree | 1.6% | 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 De Smet. Using the proficiency score averages, the average test scores for De Smet, SD schools is 61%. The average student to teacher ratio is 12:1. In De Smet, SD, an average of 93.3% of students have completed 8th grade and an average of 89.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lake Preston, SD | 448 | 53% | 11.1% |
| Iroquois, SD | 378 | 40% | 16.7% |
| De Smet, SD | 1,041 | 61% | 26.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Marion, MT | 1,041 | 42% | 12.0% |
| Bessemer, PA | 1,041 | 66% | 36.8% |
| Luttrell, TN | 1,041 | 22% | 54.2% |
| Randolph, NY | 1,041 | 46% | 4.5% |
| Cloverport, KY | 1,041 | 46% | 3.5% |
| De Smet, SD | 1,041 | 61% | 26.4% |
Here are the best places to live in South Dakota
These are the largest cities in South Dakota
Safest States In The US
These are the 10 cheapest cities in South Dakota