According to Forbes, there are four billionaires who live in the largest cities in Texas.

Forbes recently did a study that named the richest people in 50 of America's largest cities. Well-known names like Bill Gates and Mark Zuckerberg found their way on the list, as well as lesser-known billionaires from Missouri, Georgia, and Utah.

Texas had a great representation with four of the fifty richest people in the largest cities in the U.S.

Alice Walton, proprietor of the Wal-Mart fortune, is the richest woman from Dallas/Fort Worth, as well as the richest among the other largest cities in Texas. She is worth $30.9 billion and also ranks at #12 on the Forbes 400.

In second place is Michael Dell, self-made billionaire and CEO of Dell Computers. He lives in Austin and is worth $18.7 billion. In 2015, he was ranked by Forbes as the 59th most powerful person.

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From San Antonio, we've got Charles Butt, CEO of H-E-B supermarkets. The company was started by his grandmother, Florence Butt, and passed down to her son, who then passed it down to Charles in 1971. He is worth $10.7 billion.

Finally, our billionaire from Houston is Richard Kinder. Kinder is the former CEO of a pipeline company and is worth $5.1 billion. According to Forbes, he has his fingers crossed that Jeb Bush, an oil-friendly candidate, will become president in 2016.

Out of the entire list, Mark Zuckerberg is the youngest billionaire at age 31. Henry Hillman, an industrialist from Pittsburgh, is the oldest at 97. From Texas, the oldest is Charles Butt (77) and the youngest is Michael Dell (50).