| | Cos Cob, CT | Summit, NJ | United States |
| Expend. per Student | $22,984 | $23,387 | $15,905 |
| Educ. Expend. per Student | $20,833 | $20,528 | $13,142 |
| Instr. Expend. per Student | $12,792 | $12,582 | $7,999 |
| Pupil/Teacher Ratio | 12.77 | 12.77 | 16.23 |
| Students per Librarian | 506 | 1283 | 4573 |
| Students per Counselor | 356 | 377 | 530 |
| Grade School Educ. | 2.5% | 3.0% | 4.8% |
| Some High School Educ. | 2.9% | 1.9% | 6.3% |
| High School Educ. | 94.6% | 95.2% | 88.9% |
| Some College Educ. | 5.0% | 8.9% | 20.0% |
| 2 yr College Grad. | 6.3% | 3.6% | 8.7% |
| 4 yr College Grad. | 65.1% | 69.6% | 33.7% |
| Masters Grad. | 24.0% | 23.2% | 9.3% |
| Professional Degree | 4.7% | 8.3% | 2.2% |
| Doctorate Degree | 2.0% | 5.0% | 1.5% |