| | Irmo, SC | Alpharetta, GA | United States |
| Expend. per Student | $17,157 | $16,267 | $15,905 |
| Educ. Expend. per Student | $14,952 | $14,100 | $13,142 |
| Instr. Expend. per Student | $9,360 | $8,086 | $7,999 |
| Pupil/Teacher Ratio | 15.36 | 13.8 | 16.23 |
| Students per Librarian | 574 | 570 | 4573 |
| Students per Counselor | 336 | 397 | 530 |
| Grade School Educ. | 2.5% | 1.6% | 4.8% |
| Some High School Educ. | 2.6% | 1.6% | 6.3% |
| High School Educ. | 95.0% | 96.7% | 88.9% |
| Some College Educ. | 26.8% | 12.9% | 20.0% |
| 2 yr College Grad. | 11.2% | 4.8% | 8.7% |
| 4 yr College Grad. | 38.0% | 70.5% | 33.7% |
| Masters Grad. | 10.2% | 21.9% | 9.3% |
| Professional Degree | 0.6% | 5.2% | 2.2% |
| Doctorate Degree | 0.6% | 2.4% | 1.5% |