| Index | Weldon Spring | Missouri | National |
| Average Test Scores | 70% | 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 | Weldon Spring | Missouri | National |
| Completed 8th grade | 96.0% | 86.0% | 84.3% |
| Completed high school | 95.9% | 84.2% | 83.0% |
| Completed some college | 80.6% | 57.7% | 59.4% |
| Completed associate degree | 55.6% | 35.2% | 38.5% |
| Completed bachelors | 51.4% | 27.6% | 30.3% |
| Completed masters | 21.6% | 10.4% | 11.5% |
| Completed professional degree | 4.5% | 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 Weldon Spring. Using the proficiency score averages, the average test scores for Weldon Spring, MO schools is 70%. The average student to teacher ratio is n/a. In Weldon Spring, MO, an average of 96.0% of students have completed 8th grade and an average of 95.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Dardenne Prairie, MO | 13,385 | 73% | 51.0% |
| Lake St. Louis, MO | 16,357 | 71% | 48.4% |
| Chesterfield, MO | 47,603 | 69% | 43.2% |
| Kirkwood, MO | 27,772 | 69% | 43.1% |
| Cottleville, MO | 5,439 | 69% | 43.1% |
| Weldon Spring, MO | 5,536 | 70% | 45.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Byron, MN | 5,536 | 53% | 11.0% |
| Bessemer City, NC | 5,536 | 26% | 45.1% |
| Swartz Creek, MI | 5,535 | 41% | 13.9% |
| Duquesne, PA | 5,534 | 15% | 69.8% |
| Jonesborough, TN | 5,539 | 43% | 10.4% |
| Weldon Spring, MO | 5,536 | 70% | 45.5% |
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