| | St. Charles, IL | Poway, CA | United States |
| Expend. per Student | $17,588 | $16,358 | $15,905 |
| Educ. Expend. per Student | $15,271 | $13,161 | $13,142 |
| Instr. Expend. per Student | $8,985 | $8,084 | $7,999 |
| Pupil/Teacher Ratio | 14.42 | 22.65 | 16.23 |
| Students per Librarian | 1352 | 18744 | 4573 |
| Students per Counselor | 659 | 513 | 530 |
| Grade School Educ. | 2.1% | 4.3% | 4.8% |
| Some High School Educ. | 3.9% | 3.8% | 6.3% |
| High School Educ. | 94.1% | 91.8% | 88.9% |
| Some College Educ. | 19.1% | 18.2% | 20.0% |
| 2 yr College Grad. | 7.1% | 8.8% | 8.7% |
| 4 yr College Grad. | 50.9% | 52.4% | 33.7% |
| Masters Grad. | 16.7% | 15.4% | 9.3% |
| Professional Degree | 2.5% | 3.5% | 2.2% |
| Doctorate Degree | 1.9% | 2.7% | 1.5% |