| | Plainfield, IN | Decatur, IL | United States |
| Expend. per Student | $13,510 | $14,460 | $15,905 |
| Educ. Expend. per Student | $10,199 | $12,532 | $13,142 |
| Instr. Expend. per Student | $5,754 | $6,704 | $7,999 |
| Pupil/Teacher Ratio | 16.9 | 15.82 | 16.23 |
| Students per Librarian | 695 | 3721 | 4573 |
| Students per Counselor | 603 | 771 | 530 |
| Grade School Educ. | 1.8% | 2.6% | 4.8% |
| Some High School Educ. | 3.7% | 7.4% | 6.3% |
| High School Educ. | 94.4% | 90.0% | 88.9% |
| Some College Educ. | 21.9% | 23.9% | 20.0% |
| 2 yr College Grad. | 8.0% | 7.6% | 8.7% |
| 4 yr College Grad. | 31.6% | 21.1% | 33.7% |
| Masters Grad. | 9.5% | 5.9% | 9.3% |
| Professional Degree | 1.4% | 0.9% | 2.2% |
| Doctorate Degree | 0.9% | 0.8% | 1.5% |