| Index | Preston Heights | 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 | Preston Heights | Illinois | National |
| Completed 8th grade | 75.2% | 86.2% | 84.3% |
| Completed high school | 72.8% | 84.7% | 83.0% |
| Completed some college | 36.9% | 61.8% | 59.4% |
| Completed associate degree | 14.2% | 40.7% | 38.5% |
| Completed bachelors | 10.7% | 32.9% | 30.3% |
| Completed masters | 3.1% | 12.7% | 11.5% |
| Completed professional degree | 0.7% | 3.4% | 3.3% |
| Completed doctorate | 0.3% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Preston Heights. Using the proficiency score averages, the average test scores for Preston Heights, IL schools is n/a. The average student to teacher ratio is n/a. In Preston Heights, IL, an average of 75.2% of students have completed 8th grade and an average of 72.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Palos Park, IL | 4,779 | 61% | 26.6% |
| Frankfort, IL | 19,166 | 56% | 16.3% |
| Homer Glen, IL | 24,521 | 55% | 14.6% |
| Manhattan, IL | 8,218 | 54% | 12.5% |
| Palos Hills, IL | 17,172 | 53% | 9.9% |
| Preston Heights, IL | 2,529 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Postville, IA | 2,528 | 44% | 9.4% |
| Kalona, IA | 2,528 | 69% | 43.8% |
| Stone Ridge, NY | 2,528 | 62% | 29.2% |
| New Concord, OH | 2,530 | 70% | 46.5% |
| Nanty-Glo, PA | 2,530 | 38% | 20.3% |
| Preston Heights, IL | 2,529 | n/a |
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