| | Cary, IL | Arlington Heights, IL | United States |
| Expend. per Student | $18,892 | $21,907 | $15,905 |
| Educ. Expend. per Student | $16,554 | $18,508 | $13,142 |
| Instr. Expend. per Student | $9,697 | $11,567 | $7,999 |
| Pupil/Teacher Ratio | 13.74 | 13.97 | 16.23 |
| Students per Librarian | 913 | 1480 | 4573 |
| Students per Counselor | 578 | 481 | 530 |
| Grade School Educ. | 1.4% | 2.0% | 4.8% |
| Some High School Educ. | 1.5% | 1.7% | 6.3% |
| High School Educ. | 97.1% | 96.3% | 88.9% |
| Some College Educ. | 22.8% | 14.3% | 20.0% |
| 2 yr College Grad. | 8.4% | 7.1% | 8.7% |
| 4 yr College Grad. | 46.7% | 59.5% | 33.7% |
| Masters Grad. | 14.7% | 19.5% | 9.3% |
| Professional Degree | 1.1% | 3.3% | 2.2% |
| Doctorate Degree | 0.4% | 1.5% | 1.5% |