| | Carol Stream, IL | Phoenix, AZ | United States |
| Expend. per Student | $22,018 | $10,564 | $15,905 |
| Educ. Expend. per Student | $18,682 | $8,653 | $13,142 |
| Instr. Expend. per Student | $11,697 | $4,810 | $7,999 |
| Pupil/Teacher Ratio | 13.43 | 18.24 | 16.23 |
| Students per Librarian | 709 | 2348 | 4573 |
| Students per Counselor | 535 | 718 | 530 |
| Grade School Educ. | 3.8% | 8.2% | 4.8% |
| Some High School Educ. | 5.3% | 8.2% | 6.3% |
| High School Educ. | 90.9% | 83.5% | 88.9% |
| Some College Educ. | 20.8% | 22.1% | 20.0% |
| 2 yr College Grad. | 8.4% | 8.0% | 8.7% |
| 4 yr College Grad. | 41.7% | 30.6% | 33.7% |
| Masters Grad. | 11.3% | 8.2% | 9.3% |
| Professional Degree | 1.6% | 2.1% | 2.2% |
| Doctorate Degree | 1.1% | 1.2% | 1.5% |