| | Groton, MA | Purcellville, VA | United States |
| Expend. per Student | $23,560 | $17,858 | $15,905 |
| Educ. Expend. per Student | $19,196 | $15,780 | $13,142 |
| Instr. Expend. per Student | $12,141 | $10,210 | $7,999 |
| Pupil/Teacher Ratio | 11.99 | 13.7 | 16.23 |
| Students per Librarian | 354 | 649 | 4573 |
| Students per Counselor | 331 | 250 | 530 |
| Grade School Educ. | 1.4% | 2.2% | 4.8% |
| Some High School Educ. | 2.0% | 4.0% | 6.3% |
| High School Educ. | 96.6% | 93.9% | 88.9% |
| Some College Educ. | 12.0% | 15.4% | 20.0% |
| 2 yr College Grad. | 5.0% | 11.2% | 8.7% |
| 4 yr College Grad. | 64.6% | 55.0% | 33.7% |
| Masters Grad. | 21.9% | 19.2% | 9.3% |
| Professional Degree | 4.0% | 2.0% | 2.2% |
| Doctorate Degree | 3.5% | 0.6% | 1.5% |