Which high schools produce the most (left), and where it's the biggest part of the school's identity (right). People who came of age recently weigh more than those from earlier eras.
| School | People | vs. typical |
|---|---|---|
| La Salle College High School Pennsylvania | 36.3× | |
| Cardinal Dougherty High School Pennsylvania | 53.6× | |
| Downingtown High School Pennsylvania | 32.8× | |
| Hatboro-Horsham Senior High School Pennsylvania | 46.5× | |
| Chester High School Pennsylvania | 34.2× | |
| Cardinal O'Hara High School Pennsylvania | 33.4× | |
| West Perry High School Pennsylvania | 38.8× | |
| Central Catholic High School Pennsylvania | 19.0× | |
| Reading Senior High School Pennsylvania | 22.5× |
| School | % of its noted alumni | People |
|---|---|---|
| Cardinal Dougherty High School Pennsylvania | 4 | |
| Hatboro-Horsham Senior High School Pennsylvania | 3 | |
| West Perry High School Pennsylvania | 3 | |
| La Salle College High School Pennsylvania | 5 | |
| Chester High School Pennsylvania | 6 | |
| Cardinal O'Hara High School Pennsylvania | 3 | |
| Downingtown High School Pennsylvania | 3 | |
| Reading Senior High School Pennsylvania | 3 | |
| Central Catholic High School Pennsylvania | 3 |