| | Cary, IL | Arlington, VA | United States |
| Expend. per Student | $18,892 | $23,553 | $15,905 |
| Educ. Expend. per Student | $16,554 | $19,293 | $13,142 |
| Instr. Expend. per Student | $9,697 | $11,028 | $7,999 |
| Pupil/Teacher Ratio | 13.74 | 15.15 | 16.23 |
| Students per Librarian | 913 | 644 | 4573 |
| Students per Counselor | 578 | 248 | 530 |
| Grade School Educ. | 1.4% | 3.4% | 4.8% |
| Some High School Educ. | 1.5% | 1.7% | 6.3% |
| High School Educ. | 97.1% | 94.9% | 88.9% |
| Some College Educ. | 22.8% | 7.8% | 20.0% |
| 2 yr College Grad. | 8.4% | 3.4% | 8.7% |
| 4 yr College Grad. | 46.7% | 76.3% | 33.7% |
| Masters Grad. | 14.7% | 28.0% | 9.3% |
| Professional Degree | 1.1% | 8.3% | 2.2% |
| Doctorate Degree | 0.4% | 4.8% | 1.5% |