| 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 |


Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.
| 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 | 151,582 | 65% | 35.1% |
| St. Charles, IL | 33,452 | 57% | 19.0% |
| Lisle, IL | 24,010 | 56% | 16.7% |
| Wheaton, IL | 54,594 | 55% | 14.1% |
| Big Rock, IL | 1,298 | 55% | 13.5% |
| Montgomery, IL | 20,189 | 26% | 45.4% |
| City | Population | Avg. Test Scores | National Avg. |
| West Hempstead, NY | 20,191 | 61% | 26.0% |
| Seymour, IN | 20,201 | 45% | 6.0% |
| Central Falls, RI | 20,175 | 26% | 46.9% |
| Stillwater, MN | 20,207 | 70% | 46.6% |
| West Mifflin, PA | 20,208 | 63% | 30.6% |
| Montgomery, IL | 20,189 | 26% | 45.4% |