| | Londonderry, NH | Lanham, MD | United States |
| Expend. per Student | $22,056 | $17,603 | $15,905 |
| Educ. Expend. per Student | $19,034 | $15,913 | $13,142 |
| Instr. Expend. per Student | $12,039 | $9,718 | $7,999 |
| Pupil/Teacher Ratio | 11.7 | 13.89 | 16.23 |
| Students per Librarian | 333 | 1155 | 4573 |
| Students per Counselor | 210 | 338 | 530 |
| Grade School Educ. | 1.0% | 10.4% | 4.8% |
| Some High School Educ. | 1.6% | 8.0% | 6.3% |
| High School Educ. | 97.4% | 81.7% | 88.9% |
| Some College Educ. | 17.5% | 17.6% | 20.0% |
| 2 yr College Grad. | 10.9% | 8.7% | 8.7% |
| 4 yr College Grad. | 47.7% | 25.5% | 33.7% |
| Masters Grad. | 14.0% | 6.2% | 9.3% |
| Professional Degree | 1.9% | 1.1% | 2.2% |
| Doctorate Degree | 1.2% | 1.6% | 1.5% |