| | Chicago, IL | Brentwood, CA | United States |
| Expend. per Student | $21,907 | $15,192 | $15,905 |
| Educ. Expend. per Student | $18,508 | $12,448 | $13,142 |
| Instr. Expend. per Student | $11,567 | $7,565 | $7,999 |
| Pupil/Teacher Ratio | 13.97 | 22.21 | 16.23 |
| Students per Librarian | 1480 | 7518 | 4573 |
| Students per Counselor | 481 | 584 | 530 |
| Grade School Educ. | 7.0% | 2.8% | 4.8% |
| Some High School Educ. | 6.8% | 4.5% | 6.3% |
| High School Educ. | 86.3% | 92.7% | 88.9% |
| Some College Educ. | 17.0% | 25.9% | 20.0% |
| 2 yr College Grad. | 5.7% | 10.9% | 8.7% |
| 4 yr College Grad. | 41.7% | 37.5% | 33.7% |
| Masters Grad. | 12.2% | 8.6% | 9.3% |
| Professional Degree | 3.6% | 1.7% | 2.2% |
| Doctorate Degree | 1.8% | 1.3% | 1.5% |