| Index | Willow Lake | South Dakota | National |
| Average Test Scores | 50% | 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 | Willow Lake | South Dakota | National |
| Completed 8th grade | 91.1% | 89.1% | 84.3% |
| Completed high school | 87.5% | 86.8% | 83.0% |
| Completed some college | 54.2% | 60.4% | 59.4% |
| Completed associate degree | 32.8% | 38.5% | 38.5% |
| Completed bachelors | 22.9% | 27.5% | 30.3% |
| Completed masters | 9.4% | 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 n/a public schools, n/a private schools and n/a post-secondary schools in Willow Lake. Using the proficiency score averages, the average test scores for Willow Lake, SD schools is 50%. The average student to teacher ratio is n/a. In Willow Lake, SD, an average of 91.1% of students have completed 8th grade and an average of 87.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Willow Lake, SD | 445 | 50% | 4.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Hale, MO | 445 | 69% | 43.2% |
| Norway, IA | 445 | 73% | 51.0% |
| Fort Thomas, AZ | 445 | 21% | 57.3% |
| Broadus, MT | 445 | 41% | 15.3% |
| Lewis, KS | 445 | 40% | 16.7% |
| Willow Lake, SD | 445 | 50% | 4.2% |
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