| | Deep River, CT | Old Lyme, CT | United States |
| Expend. per Student | $25,271 | $26,209 | $15,905 |
| Educ. Expend. per Student | $22,678 | $21,083 | $13,142 |
| Instr. Expend. per Student | $13,520 | $12,420 | $7,999 |
| Pupil/Teacher Ratio | 11.52 | 11.7 | 16.23 |
| Students per Librarian | 318 | 403 | 4573 |
| Students per Counselor | 315 | 331 | 530 |
| Grade School Educ. | 3.1% | 1.9% | 4.8% |
| Some High School Educ. | 1.5% | 2.4% | 6.3% |
| High School Educ. | 95.4% | 95.6% | 88.9% |
| Some College Educ. | 12.4% | 15.4% | 20.0% |
| 2 yr College Grad. | 11.7% | 8.6% | 8.7% |
| 4 yr College Grad. | 44.3% | 53.7% | 33.7% |
| Masters Grad. | 17.0% | 18.4% | 9.3% |
| Professional Degree | 0.0% | 5.2% | 2.2% |
| Doctorate Degree | 2.0% | 3.6% | 1.5% |