Oprah Winfrey, $2.8 billion
Oprah still remains the only African-American billionaire in the world. Her cable channel, OWN (Oprah Winfrey Network) enjoyed favorable ratings with an exclusive interview with disgraced cyclist Lance Armstrong and other extremely popular interviews with stars like Beyonce and Rihanna. She also announced an upcoming Tyler Perry-helmed sitcom on her network. Still one of America’s more generous philanthropists, Oprah’s lifetime giving is estimated at $400 million. She has spent about $100 million on the Oprah Winfrey Leadership Academy for Girls in South Africa.