Estimated living alumni, per school, from The Athletic
| School | Alumni |
|---|---|
 Indiana | 790,033 |
 Penn State | 775,000 |
 Michigan | 668,000 |
 UCLA | 662,000 |
 Texas A&M | 604,530 |
 Ohio State | 600,000 |
 Illinois | 600,000 |
 Arizona State | 600,000 |
 Rutgers | 600,000 |
 Purdue | 600,000 |
