| Index | Harwood Heights | Illinois | National |
| Average Test Scores | 55% | 33% | 48% |
| Student/Teacher ratio | 12:1 | 18:1 | 16:1 |
| Total public schools | 2 | 3,938 | 79,221 |
| Total private schools | n/a | 1,438 | 24,874 |
| Total post-secondary schools | n/a | 306 | 7,963 |
| Index | Harwood Heights | Illinois | National |
| Completed 8th grade | 84.5% | 86.2% | 84.3% |
| Completed high school | 82.2% | 84.7% | 83.0% |
| Completed some college | 57.1% | 61.8% | 59.4% |
| Completed associate degree | 38.0% | 40.7% | 38.5% |
| Completed bachelors | 27.9% | 32.9% | 30.3% |
| Completed masters | 7.7% | 12.7% | 11.5% |
| Completed professional degree | 0.9% | 3.4% | 3.3% |
| Completed doctorate | 0.1% | 1.2% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Harwood Heights. Using the proficiency score averages, the average test scores for Harwood Heights, IL schools is 55%. The average student to teacher ratio is 12:1. In Harwood Heights, IL, an average of 84.5% of students have completed 8th grade and an average of 82.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Oak Brook, IL | 8,377 | 79% | 64.6% |
| Clarendon Hills, IL | 9,104 | 77% | 59.4% |
| Deerfield, IL | 19,650 | 77% | 59.4% |
| Hinsdale, IL | 17,817 | 74% | 54.7% |
| Western Springs, IL | 13,775 | 74% | 54.4% |
| Harwood Heights, IL | 8,628 | 55% | 13.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Mascoutah, IL | 8,629 | 54% | 11.5% |
| Denison, IA | 8,630 | 63% | 31.3% |
| Millersville, PA | 8,625 | 74% | 54.7% |
| Mason, MI | 8,624 | 54% | 12.5% |
| Virginia, MN | 8,634 | 49% | 2.3% |
| Harwood Heights, IL | 8,628 | 55% | 13.5% |
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