1. DIANE HENDRICKS

$11 billion  SOURCE: Roofing AGE: 74 • RESIDENCE: Afton, WI SELF-MADE SCORE:  Hendricks is the first self-made woman in America to boast an 11-figure fortune thanks to a $3 billion uptick in her net worth since last year; she runs and owns roofing distributor ABC Supply, which reeled in a record $12.1 billion in revenue in 2020. The Wisconsin native, who cofounded ABC in 1982, is turning an old Coca-Cola plant in Indianapolis into the Bottleworks District, a $300 million project that includes a food hall, boutique hotel and movie theater.