| | Mount Gretna, PA | Marietta, PA | United States |
| Expend. per Student | $16,653 | $19,226 | $15,905 |
| Educ. Expend. per Student | $13,130 | $15,226 | $13,142 |
| Instr. Expend. per Student | $8,136 | $9,603 | $7,999 |
| Pupil/Teacher Ratio | 15.11 | 13.77 | 16.23 |
| Students per Librarian | 661 | 457 | 4573 |
| Students per Counselor | 395 | 314 | 530 |
| Grade School Educ. | 0.0% | 1.4% | 4.8% |
| Some High School Educ. | 0.0% | 7.7% | 6.3% |
| High School Educ. | 100.0% | 90.9% | 88.9% |
| Some College Educ. | 10.5% | 14.4% | 20.0% |
| 2 yr College Grad. | 9.8% | 10.0% | 8.7% |
| 4 yr College Grad. | 49.7% | 21.4% | 33.7% |
| Masters Grad. | 11.8% | 4.3% | 9.3% |
| Professional Degree | 4.6% | 0.8% | 2.2% |
| Doctorate Degree | 2.6% | 1.6% | 1.5% |