A fingerprint of every US high school Wikipedia knows about, built from what its prominent alumni did with their lives — the occupations, employers, awards, and sports where a school's graduates show up far more often than the typical school's. It's the college outcomes explorer, pointed at high schools.
A caveat up front: Wikipedia's coverage of high schools is thin. Wikidata records a high school for only a small minority of notable Americans, and coverage skews toward well-known schools, athletes, and recent decades. Treat small numbers as anecdotes, not statistics — the tables below enforce minimum counts for exactly that reason.
Weighted toward people who came of age recently (25-year half-life), so schools that mattered lately rank ahead of ones whose fame peaked a century ago.
How this works. We start from Wikidata's "educated at" links for every US secondary school, keep people with at least one Wikipedia article, and compare each school's mix of occupations, employers, awards, and sports against the national mix across all noted high-school alumni. "3×" means the school's noted alumni are three times as likely to have that trait as noted alumni overall. Small schools are shrunk toward the national average so three people can't define a trend.
What this is not. A ranking. Fame on Wikipedia is a biased lens — it favors athletes, entertainers, politicians, and the already-famous — and a high school's noted alumni say as much about its neighborhood, era, and size as about the school itself.