| Index | Northbrook | Illinois | National |
| Average Test Scores | 72% | 33% | 48% |
| Student/Teacher ratio | 12:1 | 18:1 | 16:1 |
| Total public schools | 12 | 3,938 | 79,221 |
| Total private schools | 8 | 1,438 | 24,874 |
| Total post-secondary schools | 1 | 306 | 7,963 |
| Index | Northbrook | Illinois | National |
| Completed 8th grade | 96.7% | 86.2% | 84.3% |
| Completed high school | 96.3% | 84.7% | 83.0% |
| Completed some college | 86.7% | 61.8% | 59.4% |
| Completed associate degree | 72.2% | 40.7% | 38.5% |
| Completed bachelors | 68.3% | 32.9% | 30.3% |
| Completed masters | 31.8% | 12.7% | 11.5% |
| Completed professional degree | 12.7% | 3.4% | 3.3% |
| Completed doctorate | 3.1% | 1.2% | 1.3% |
There are a total of 12 public schools, 8 private schools and 1 post-secondary schools in Northbrook. Using the proficiency score averages, the average test scores for Northbrook, IL schools is 72%. The average student to teacher ratio is 12:1. In Northbrook, IL, an average of 96.7% of students have completed 8th grade and an average of 96.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lincolnshire, IL | 7,694 | 78% | 62.8% |
| Bannockburn, IL | 1,194 | 77% | 60.4% |
| Deerfield, IL | 19,030 | 77% | 59.4% |
| Kenilworth, IL | 2,356 | 74% | 53.1% |
| Northfield, IL | 5,678 | 74% | 53.1% |
| Northbrook, IL | 33,216 | 72% | 50.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Prairieville, LA | 33,228 | 88% | 82.5% |
| Springville, UT | 33,251 | 45% | 6.2% |
| Lexington, MA | 33,304 | 78% | 63.1% |
| Hinesville, GA | 33,304 | 37% | 23.2% |
| Holland, MI | 33,329 | 48% | 1.0% |
| Northbrook, IL | 33,216 | 72% | 50.7% |
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