| Index | St. Ann | Missouri | National |
| Average Test Scores | 29% | 44% | 48% |
| Student/Teacher ratio | 13:1 | 14:1 | 16:1 |
| Total public schools | 6 | 1,899 | 79,221 |
| Total private schools | 2 | 531 | 24,874 |
| Total post-secondary schools | 2 | 213 | 7,963 |
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| Index | St. Ann | Missouri | National |
| Completed 8th grade | 84.0% | 86.0% | 84.3% |
| Completed high school | 80.8% | 84.2% | 83.0% |
| Completed some college | 53.4% | 57.7% | 59.4% |
| Completed associate degree | 28.2% | 35.2% | 38.5% |
| Completed bachelors | 18.0% | 27.6% | 30.3% |
| Completed masters | 3.4% | 10.4% | 11.5% |
| Completed professional degree | 0.3% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 6 public schools, 2 private schools and 2 post-secondary schools in St. Ann. Using the proficiency score averages, the average test scores for St. Ann, MO schools is 29%. The average student to teacher ratio is 13:1. In St. Ann, MO, an average of 84.0% of students have completed 8th grade and an average of 80.8% 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% |
| St. Ann, MO | 12,689 | 29% | 40.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Crowley, LA | 12,689 | 63% | 30.6% |
| Endicott, NY | 12,684 | 44% | 7.6% |
| Meadville, PA | 12,684 | 49% | 3.0% |
| Fulton, MO | 12,696 | 47% | 2.3% |
| Smithfield, NC | 12,697 | 43% | 11.5% |
| St. Ann, MO | 12,689 | 29% | 40.6% |
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