| | Nassau, NY | Castleton-on-Hudson, NY | United States |
| Expend. per Student | $25,127 | $25,127 | $15,905 |
| Educ. Expend. per Student | $21,103 | $21,103 | $13,142 |
| Instr. Expend. per Student | $13,214 | $13,214 | $7,999 |
| Pupil/Teacher Ratio | 11.74 | 11.74 | 16.23 |
| Students per Librarian | 719 | 719 | 4573 |
| Students per Counselor | 289 | 289 | 530 |
| Grade School Educ. | 0.7% | 2.1% | 4.8% |
| Some High School Educ. | 3.9% | 4.5% | 6.3% |
| High School Educ. | 95.4% | 93.4% | 88.9% |
| Some College Educ. | 14.8% | 24.8% | 20.0% |
| 2 yr College Grad. | 17.3% | 6.3% | 8.7% |
| 4 yr College Grad. | 33.5% | 29.8% | 33.7% |
| Masters Grad. | 7.9% | 11.1% | 9.3% |
| Professional Degree | 4.0% | 0.8% | 2.2% |
| Doctorate Degree | 0.8% | 1.9% | 1.5% |