| Index | McCullom Lake | Illinois | National |
| Average Test Scores | n/a | 33% | 48% |
| Student/Teacher ratio | n/a | 18:1 | 16:1 |
| Total public schools | n/a | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | McCullom Lake | Illinois | National |
| Completed 8th grade | 76.3% | 86.2% | 84.3% |
| Completed high school | 76.0% | 84.7% | 83.0% |
| Completed some college | 46.6% | 61.8% | 59.4% |
| Completed associate degree | 17.5% | 40.7% | 38.5% |
| Completed bachelors | 8.4% | 32.9% | 30.3% |
| Completed masters | 0.3% | 12.7% | 11.5% |
| Completed professional degree | 0.0% | 3.4% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in McCullom Lake. Using the proficiency score averages, the average test scores for McCullom Lake, IL schools is n/a. The average student to teacher ratio is n/a. In McCullom Lake, IL, an average of 76.3% of students have completed 8th grade and an average of 76.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Long Grove, IL | 8,145 | 70% | 46.5% |
| North Barrington, IL | 2,886 | 64% | 33.3% |
| Silver Lake, WI | 2,599 | 62% | 28.1% |
| Barrington, IL | 10,656 | 61% | 26.2% |
| Bristol, WI | 5,261 | 56% | 15.6% |
| McCullom Lake, IL | 1,222 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Sunriver, OR | 1,222 | 61% | 27.1% |
| Laurens, IA | 1,222 | 60% | 25.0% |
| Woodbury, GA | 1,222 | 12% | 75.0% |
| Sand Point, AK | 1,222 | 40% | 17.7% |
| Roseland, LA | 1,221 | 57% | 18.8% |
| McCullom Lake, IL | 1,222 | n/a |
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