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 | % of its noted alumni | People |
|---|---|---|
| Rufus King International School – High School Campus Wisconsin | 9 | |
| Bay View High School Wisconsin | 8 | |
| South Division High School Wisconsin | 11 | |
| Washington High School Wisconsin | 9 | |
| John Marshall High School Wisconsin | 4 | |
| Marquette University High School Wisconsin | 7 | |
| Riverside University High School Wisconsin | 7 | |
| Aquinas High School Wisconsin | 4 | |
| Beloit Memorial High School Wisconsin | 4 | |
| Sheboygan North High School | 3 | |
| Lynde & Harry Bradley Technology and Trade School Wisconsin | 4 | |
| Milwaukee Lutheran High School Wisconsin | 3 | |
| Wausau East High School Wisconsin | 3 | |
| St. Catherine's High School Wisconsin | 5 | |
| Mary D. Bradford High School Wisconsin | 4 | |
| Lincoln High School | 4 | |
| North Division High School Wisconsin | 4 | |
| Green Bay East High School Wisconsin | 3 | |
| Kaukauna High School Wisconsin | 3 | |
| Madison West High School Wisconsin | 4 | |
| Neenah High School Wisconsin | 3 | |
| West Allis Central High School Wisconsin | 3 | |
| University School of Milwaukee Wisconsin | 3 | |
| St. John's Northwestern Military Academy Wisconsin | 4 |