| Index | Brentwood | Missouri | National |
| Average Test Scores | 77% | 51% | 49% |
| Student/Teacher ratio | 11:1 | 14:1 | 16:1 |
| Total public schools | 4 | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Brentwood | Missouri | National |
| Completed 8th grade | 97.6% | 86.0% | 84.3% |
| Completed high school | 97.4% | 84.2% | 83.0% |
| Completed some college | 88.1% | 57.7% | 59.4% |
| Completed associate degree | 76.8% | 35.2% | 38.5% |
| Completed bachelors | 71.2% | 27.6% | 30.3% |
| Completed masters | 33.0% | 10.4% | 11.5% |
| Completed professional degree | 9.5% | 2.8% | 3.3% |
| Completed doctorate | 3.9% | 1.2% | 1.3% |
There are a total of 4 public schools, n/a private schools and n/a post-secondary schools in Brentwood. Using the proficiency score averages, the average test scores for Brentwood, MO schools is 77%. The average student to teacher ratio is 11:1. In Brentwood, MO, an average of 97.6% of students have completed 8th grade and an average of 97.4% have completed high school.
| City, State | Population | Avg. Test Scores | National Avg. |
| Olivette, MO | 7,830 | 85% | 72% |
| Sappington, MO | 7,233 | 79% | 60% |
| Crestwood, MO | 11,941 | 79% | 60% |
| Chesterfield, MO | 47,717 | 78% | 59% |
| Glendale, MO | 5,917 | 78% | 58% |
| Brentwood, MO | 8,030 | 77% | 57% |
| City, State | Population | Avg. Test Scores | National Avg. |
| Willow Street, PA | 8,030 | 29% | 42% |
| Richland Hills, TX | 8,033 | 72% | 47% |
| Island Lake, IL | 8,025 | 35% | 30% |
| Mammoth Lakes, CA | 8,035 | 41% | 17% |
| Grand Blanc, MI | 8,039 | 54% | 9% |
| Brentwood, MO | 8,030 | 77% | 57% |
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