| Index | Johnsburg | Illinois | National |
| Average Test Scores | 40% | 33% | 48% |
| Student/Teacher ratio | 29:1 | 18:1 | 16:1 |
| Total public schools | 3 | 3,938 | 79,221 |
| Total private schools | 1 | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Johnsburg | Illinois | National |
| Completed 8th grade | 93.9% | 86.2% | 84.3% |
| Completed high school | 92.7% | 84.7% | 83.0% |
| Completed some college | 60.1% | 61.8% | 59.4% |
| Completed associate degree | 38.7% | 40.7% | 38.5% |
| Completed bachelors | 30.1% | 32.9% | 30.3% |
| Completed masters | 11.2% | 12.7% | 11.5% |
| Completed professional degree | 3.2% | 3.4% | 3.3% |
| Completed doctorate | 0.7% | 1.2% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Johnsburg. Using the proficiency score averages, the average test scores for Johnsburg, IL schools is 40%. The average student to teacher ratio is 29:1. In Johnsburg, IL, an average of 93.9% of students have completed 8th grade and an average of 92.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Libertyville, IL | 20,300 | 71% | 48.7% |
| Long Grove, IL | 7,907 | 70% | 46.5% |
| North Barrington, IL | 2,789 | 64% | 33.3% |
| Buffalo Grove, IL | 40,804 | 64% | 32.4% |
| Silver Lake, WI | 2,506 | 62% | 28.1% |
| Johnsburg, IL | 6,354 | 40% | 16.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Ramtown, NJ | 6,354 | 65% | 35.9% |
| Burnet, TX | 6,357 | 38% | 21.6% |
| Sidney, MT | 6,351 | 49% | 2.9% |
| Dillon, SC | 6,358 | 36% | 24.8% |
| De Soto, MO | 6,359 | 42% | 13.5% |
| Johnsburg, IL | 6,354 | 40% | 16.0% |
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