| Index | Green Park | 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 | Green Park | Missouri | National |
| Completed 8th grade | 89.4% | 86.0% | 84.3% |
| Completed high school | 86.1% | 84.2% | 83.0% |
| Completed some college | 61.3% | 57.7% | 59.4% |
| Completed associate degree | 39.3% | 35.2% | 38.5% |
| Completed bachelors | 28.6% | 27.6% | 30.3% |
| Completed masters | 9.4% | 10.4% | 11.5% |
| Completed professional degree | 2.4% | 2.8% | 3.3% |
| Completed doctorate | 1.1% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Green Park. Using the proficiency score averages, the average test scores for Green Park, MO schools is n/a. The average student to teacher ratio is n/a. In Green Park, MO, an average of 89.4% of students have completed 8th grade and an average of 86.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Clayton, MO | 16,763 | 73% | 52.7% |
| Brentwood, MO | 7,986 | 70% | 45.6% |
| Olivette, MO | 7,837 | 70% | 44.8% |
| Chesterfield, MO | 47,603 | 69% | 43.2% |
| Kirkwood, MO | 27,772 | 69% | 43.1% |
| Green Park, MO | 2,626 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Sewanee, TN | 2,625 | 57% | 18.8% |
| Corinth, NY | 2,627 | 56% | 15.6% |
| Centreville, AL | 2,627 | 33% | 30.7% |
| Conrad, MT | 2,624 | 41% | 14.2% |
| Chappaqua, NY | 2,628 | 86% | 79.0% |
| Green Park, MO | 2,626 | n/a |
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