Question: is oprah winfrey the richest woman in america?
Answer: In fact, the richest woman in America is from the Walton Family (of Wal-Mart), and half of the list consists of members of the Mars family. It's for that reason that women like Oprah Winfrey, who has a net worth of $2.8 billion, and Marian Ilitch, who co-founded Little Caesars Pizza, are not on this list.