| Index | Union Star | Missouri | National |
| Average Test Scores | 45% | 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 | Union Star | Missouri | National |
| Completed 8th grade | 87.4% | 86.0% | 84.3% |
| Completed high school | 84.4% | 84.2% | 83.0% |
| Completed some college | 38.2% | 57.7% | 59.4% |
| Completed associate degree | 15.6% | 35.2% | 38.5% |
| Completed bachelors | 9.9% | 27.6% | 30.3% |
| Completed masters | 3.1% | 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 Union Star. Using the proficiency score averages, the average test scores for Union Star, MO schools is 45%. The average student to teacher ratio is n/a. In Union Star, MO, an average of 87.4% of students have completed 8th grade and an average of 84.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Cosby, MO | 200 | 65% | 34.4% |
| Country Club, MO | 2,488 | 62% | 29.2% |
| Barnard, MO | 254 | 55% | 14.6% |
| King City, MO | 945 | 50% | 3.1% |
| Rosendale, MO | 104 | 47% | 1.7% |
| Union Star, MO | 555 | 45% | 6.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Woodlawn, IL | 555 | 36% | 26.0% |
| Leakey, TX | 555 | 32% | 33.3% |
| Accord, NY | 555 | 53% | 9.7% |
| Carney, OK | 555 | 30% | 38.0% |
| Naples, ME | 555 | 38% | 21.9% |
| Union Star, MO | 555 | 45% | 6.3% |
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