| Index | Lake Forest | Illinois | National |
| Average Test Scores | 66% | 33% | 48% |
| Student/Teacher ratio | 14:1 | 18:1 | 16:1 |
| Total public schools | 6 | 3,938 | 79,221 |
| Total private schools | 6 | 1,438 | 24,874 |
| Total post-secondary schools | 2 | 306 | 7,963 |
| Index | Lake Forest | Illinois | National |
| Completed 8th grade | 98.2% | 86.2% | 84.3% |
| Completed high school | 97.9% | 84.7% | 83.0% |
| Completed some college | 91.3% | 61.8% | 59.4% |
| Completed associate degree | 81.6% | 40.7% | 38.5% |
| Completed bachelors | 78.6% | 32.9% | 30.3% |
| Completed masters | 38.6% | 12.7% | 11.5% |
| Completed professional degree | 14.7% | 3.4% | 3.3% |
| Completed doctorate | 4.0% | 1.2% | 1.3% |
There are a total of 6 public schools, 6 private schools and 2 post-secondary schools in Lake Forest. Using the proficiency score averages, the average test scores for Lake Forest, IL schools is 66%. The average student to teacher ratio is 14:1. In Lake Forest, IL, an average of 98.2% of students have completed 8th grade and an average of 97.9% 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% |
| Northfield, IL | 5,678 | 74% | 53.1% |
| Kenilworth, IL | 2,356 | 74% | 53.1% |
| Lake Forest, IL | 19,497 | 66% | 37.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Cumberland, MD | 19,495 | 44% | 8.4% |
| Montgomery, IL | 19,515 | 26% | 45.4% |
| Stillwater, MN | 19,471 | 70% | 46.6% |
| Boone, NC | 19,466 | 58% | 20.1% |
| Orinda, CA | 19,461 | 87% | 81.4% |
| Lake Forest, IL | 19,497 | 66% | 37.2% |
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