| Index | Montgomery | Illinois | National |
| Average Test Scores | 26% | 33% | 48% |
| Student/Teacher ratio | 18:1 | 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 | Montgomery | Illinois | National |
| Completed 8th grade | 89.0% | 86.2% | 84.3% |
| Completed high school | 88.3% | 84.7% | 83.0% |
| Completed some college | 62.6% | 61.8% | 59.4% |
| Completed associate degree | 39.5% | 40.7% | 38.5% |
| Completed bachelors | 32.3% | 32.9% | 30.3% |
| Completed masters | 12.1% | 12.7% | 11.5% |
| Completed professional degree | 1.2% | 3.4% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Montgomery. Using the proficiency score averages, the average test scores for Montgomery, IL schools is 26%. The average student to teacher ratio is 18:1. In Montgomery, IL, an average of 89.0% of students have completed 8th grade and an average of 88.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Naperville, IL | 147,734 | 65% | 35.1% |
| St. Charles, IL | 32,612 | 57% | 19.0% |
| Lisle, IL | 23,363 | 56% | 16.7% |
| Wheaton, IL | 53,157 | 55% | 14.1% |
| Big Rock, IL | 1,271 | 55% | 13.5% |
| Montgomery, IL | 19,515 | 26% | 45.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Lake Forest, IL | 19,497 | 66% | 37.2% |
| Cumberland, MD | 19,495 | 44% | 8.4% |
| El Reno, OK | 19,539 | 34% | 30.1% |
| Monroe, MI | 19,543 | 39% | 18.9% |
| Stillwater, MN | 19,471 | 70% | 46.6% |
| Montgomery, IL | 19,515 | 26% | 45.4% |
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