| | Arlington Heights, IL | Downers Grove, IL | United States |
| Expend. per Student | $21,907 | $22,018 | $15,905 |
| Educ. Expend. per Student | $18,508 | $18,682 | $13,142 |
| Instr. Expend. per Student | $11,567 | $11,697 | $7,999 |
| Pupil/Teacher Ratio | 13.97 | 13.43 | 16.23 |
| Students per Librarian | 1480 | 709 | 4573 |
| Students per Counselor | 481 | 535 | 530 |
| Grade School Educ. | 2.0% | 1.9% | 4.8% |
| Some High School Educ. | 1.7% | 1.9% | 6.3% |
| High School Educ. | 96.3% | 96.2% | 88.9% |
| Some College Educ. | 14.3% | 16.4% | 20.0% |
| 2 yr College Grad. | 7.1% | 6.8% | 8.7% |
| 4 yr College Grad. | 59.5% | 59.8% | 33.7% |
| Masters Grad. | 19.5% | 17.4% | 9.3% |
| Professional Degree | 3.3% | 4.5% | 2.2% |
| Doctorate Degree | 1.5% | 2.7% | 1.5% |