| | Islip, NY | Yorktown, VA | United States |
| Expend. per Student | $30,219 | $12,987 | $15,905 |
| Educ. Expend. per Student | $26,965 | $10,931 | $13,142 |
| Instr. Expend. per Student | $18,018 | $6,839 | $7,999 |
| Pupil/Teacher Ratio | 12.27 | 15.42 | 16.23 |
| Students per Librarian | 1114 | 285 | 4573 |
| Students per Counselor | 356 | 339 | 530 |
| Grade School Educ. | 8.4% | 0.0% | 4.8% |
| Some High School Educ. | 6.2% | 0.0% | 6.3% |
| High School Educ. | 85.4% | 100.0% | 88.9% |
| Some College Educ. | 17.5% | 3.6% | 20.0% |
| 2 yr College Grad. | 9.8% | 3.2% | 8.7% |
| 4 yr College Grad. | 31.0% | 76.5% | 33.7% |
| Masters Grad. | 10.7% | 40.5% | 9.3% |
| Professional Degree | 2.2% | 0.0% | 2.2% |
| Doctorate Degree | 0.9% | 8.9% | 1.5% |