| | Clayton, MO | Mokena, IL | United States |
| Expend. per Student | $13,953 | $18,169 | $15,905 |
| Educ. Expend. per Student | $11,967 | $16,222 | $13,142 |
| Instr. Expend. per Student | $6,927 | $9,784 | $7,999 |
| Pupil/Teacher Ratio | 14.01 | 14.41 | 16.23 |
| Students per Librarian | 632 | 1491 | 4573 |
| Students per Counselor | 276 | 776 | 530 |
| Grade School Educ. | 0.9% | 0.9% | 4.8% |
| Some High School Educ. | 2.2% | 1.6% | 6.3% |
| High School Educ. | 96.9% | 97.6% | 88.9% |
| Some College Educ. | 8.8% | 20.9% | 20.0% |
| 2 yr College Grad. | 1.2% | 11.4% | 8.7% |
| 4 yr College Grad. | 79.4% | 44.4% | 33.7% |
| Masters Grad. | 23.5% | 13.7% | 9.3% |
| Professional Degree | 12.7% | 1.8% | 2.2% |
| Doctorate Degree | 9.7% | 1.1% | 1.5% |