| | Shirley, MA | Ayer, MA | United States |
| Expend. per Student | $23,560 | $23,560 | $15,905 |
| Educ. Expend. per Student | $19,196 | $19,196 | $13,142 |
| Instr. Expend. per Student | $12,141 | $12,141 | $7,999 |
| Pupil/Teacher Ratio | 11.99 | 11.99 | 16.23 |
| Students per Librarian | 354 | 354 | 4573 |
| Students per Counselor | 331 | 331 | 530 |
| Grade School Educ. | 1.8% | 1.8% | 4.8% |
| Some High School Educ. | 9.1% | 5.3% | 6.3% |
| High School Educ. | 89.1% | 92.9% | 88.9% |
| Some College Educ. | 16.7% | 16.3% | 20.0% |
| 2 yr College Grad. | 9.2% | 9.2% | 8.7% |
| 4 yr College Grad. | 30.3% | 45.5% | 33.7% |
| Masters Grad. | 8.5% | 12.1% | 9.3% |
| Professional Degree | 0.4% | 1.2% | 2.2% |
| Doctorate Degree | 1.0% | 3.7% | 1.5% |