| Index | Webster Groves | Missouri | National |
| Average Test Scores | 64% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | 6 | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Webster Groves | Missouri | National |
| Completed 8th grade | 97.4% | 86.0% | 84.3% |
| Completed high school | 97.0% | 84.2% | 83.0% |
| Completed some college | 89.1% | 57.7% | 59.4% |
| Completed associate degree | 71.0% | 35.2% | 38.5% |
| Completed bachelors | 65.1% | 27.6% | 30.3% |
| Completed masters | 33.6% | 10.4% | 11.5% |
| Completed professional degree | 10.1% | 2.8% | 3.3% |
| Completed doctorate | 4.7% | 1.2% | 1.3% |
There are a total of n/a public schools, 6 private schools and n/a post-secondary schools in Webster Groves. Using the proficiency score averages, the average test scores for Webster Groves, MO schools is 64%. The average student to teacher ratio is n/a. In Webster Groves, MO, an average of 97.4% of students have completed 8th grade and an average of 97.0% 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% |
| Webster Groves, MO | 22,906 | 64% | 32.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Willoughby, OH | 22,904 | 69% | 43.8% |
| Derry, NH | 22,891 | 52% | 8.3% |
| Marshall, TX | 22,881 | 39% | 18.0% |
| Oakdale, CA | 22,932 | 43% | 10.8% |
| Dickinson, ND | 22,880 | 48% | 0.4% |
| Webster Groves, MO | 22,906 | 64% | 32.8% |
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