| | Groton, CT | North Chicago, IL | United States |
| Expend. per Student | $26,209 | $24,440 | $15,905 |
| Educ. Expend. per Student | $21,083 | $20,875 | $13,142 |
| Instr. Expend. per Student | $12,420 | $12,628 | $7,999 |
| Pupil/Teacher Ratio | 11.7 | 13.56 | 16.23 |
| Students per Librarian | 403 | 1005 | 4573 |
| Students per Counselor | 331 | 592 | 530 |
| Grade School Educ. | 2.6% | 10.3% | 4.8% |
| Some High School Educ. | 3.4% | 8.0% | 6.3% |
| High School Educ. | 94.0% | 81.7% | 88.9% |
| Some College Educ. | 22.2% | 22.2% | 20.0% |
| 2 yr College Grad. | 8.2% | 6.6% | 8.7% |
| 4 yr College Grad. | 38.6% | 23.3% | 33.7% |
| Masters Grad. | 12.6% | 5.9% | 9.3% |
| Professional Degree | 2.5% | 2.2% | 2.2% |
| Doctorate Degree | 2.2% | 0.8% | 1.5% |