| Index | Sundown | Missouri | National |
| Average Test Scores | n/a | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Sundown | Missouri | National |
| Completed 8th grade | 76.5% | 86.0% | 84.3% |
| Completed high school | 76.5% | 84.2% | 83.0% |
| Completed some college | 52.9% | 57.7% | 59.4% |
| Completed associate degree | 41.2% | 35.2% | 38.5% |
| Completed bachelors | 41.2% | 27.6% | 30.3% |
| Completed masters | 0.0% | 10.4% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 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 Sundown. Using the proficiency score averages, the average test scores for Sundown, MO schools is n/a. The average student to teacher ratio is n/a. In Sundown, MO, an average of 76.5% of students have completed 8th grade and an average of 76.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Gainesville, MO | 584 | 48% | 0.5% |
| Lead Hill, AR | 244 | 41% | 15.1% |
| Theodosia, MO | 116 | 23% | 53.1% |
| Sundown, MO | 106 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Leadore, ID | 106 | 55% | 14.6% |
| Beryl Junction, UT | 106 | 40% | 17.7% |
| Windom, KS | 105 | 60% | 24.0% |
| Purdin, MO | 105 | 50% | 4.2% |
| Laporte, MN | 105 | 36% | 25.5% |
| Sundown, MO | 106 | n/a |
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