The richest billionaires in America have a collective worth of $8 trillion in 2026, a staggering $1.4 trillion increase since last year, says Forbes. And one Fort Worth billionaire is holding on tight to her title as the wealthiest woman in America.

Walmart heiress Alice Walton, 76, who currently leads as the richest woman globally, is also the richest woman in America, the third-wealthiest person in Texas, and the richest Fort Worth resident for 2026.

The annual Forbes 400 list is a definitive ranking of the wealthiest Americans, using interviews, financial data, and documentation provided by billionaires and their companies. In all, 43 billionaires across Texas made it on the 2026 list, and 19 are based in Dallas-Fort Worth.

Walton's net worth has grown by $12 billion since last year, bringing her current net worth to $118 billion. She is the only daughter of late Walmart cofounder Sam Walton, though she focuses her attention on other endeavors like the Crystal Bridges Museum of American Art and the Alice L. Walton School of Medicine in Bentonville, Arkansas. Forbes still lists her residence as Fort Worth.

Walton is one of only 62 women billionaires on the Forbes 400 list, making up just 16 percent of the total list.

"Shares of the retailing giant are up more than 10 percent since last year, helping Walton widen her lead over the nation’s second-wealthiest woman, Julia Koch (estimated net worth: $84.6 billion), an heir to the Koch, Inc. conglomerate fortune," Forbes says.

The richest billionaires in Dallas-Fort Worth
American billionaires are so wealthy, it now takes an unprecedented $4.4 billion net worth to be considered one of the richest people in the country, Forbes says. And there's one new Dallas-based billionaire making his debut on the Forbes 400: Biotech "serial entrepreneur" Ben Lamm.

Lamm, 44, cofounded Austin-based biosciences company Colossal in 2021 with the goal to resurrect the woolly mammoth. The company is now worth over $10 billion, and Lamm's own net worth has skyrocketed to $5.7 billion.

"Lamm believes that governments, which have long budgeted for conservation efforts, will pay Colossal to reintroduce extinct species or to prevent endangered ones from dying off," Forbes says in Lamm's profile. "In April Lamm spun Astromech out of Colossal. The company, which private investors valued at $3.8 billion in August, uses AI to forecast evolutionary change."

Ben Lamm (left) and George Church are pioneering colossal de-extinction technology. Courtesy of Colossal

He is tied with Austin billionaire and Tito's Handmade Vodka founder Bert Beveridge as the No. 302 richest person in America.

Missing from this year's list is David Dean Halbert of Colleyville. Halbert, 70, earned his billionaire status last year when his diagnostics firm, Caris Life Sciences, went public. He became one of the 400 richest Americans in 2025, but his net worth is currently estimated at $3.7 billion, which — shockingly — makes him one of the 590 American billionaires that are "too poor to make the cut," according to Forbes.

Here's how the rest of Dallas-Fort Worth's billionaires fared on this year's list:

• Koch, Inc. stakeholder Elaine Marshall and her family rank No. 34 nationally with an estimated net worth of $32.2 billion. Last year: $28.3billion.
• Endeavor Energy Resources chairman Lyndal Stephens Greth and her family rank No. 37 nationwide with an estimated net worth of $30 billion. Last year: $27.4 billion.
• Dallas Cowboys owner Jerry Jones of Dallas sits at No. 49 in the U.S. with an estimated net worth of $23.5 billion. Last year: $19.6 billion.
• Money manager Ken Fisher of Dallas ranks 83rd nationally with an estimated net worth of $15 billion. Last year: $13.2 billion.
• Banking and real estate mogul Andy Beal of Dallas holds the No. 110 spot nationally. His estimated net worth is $12.3 billion. Last year: $12 billion.
• Gas tycoon Kelcy Warren of Dallas ranks No. 170 nationally with an estimated net worth of $9.3 billion. Last year: $7.5 billion.
• Hotel and investment guru Robert Rowling of Dallas ranks 187th nationally with an estimated net worth of $8.8 billion, unchanged from 2025.
• Oil and real estate titan Ray Lee Hunt of Dallas ranks 199th nationally with an estimated net worth of $8.3 billion. Last year: $6.9 billion.
• Real estate bigwig H. Ross Perot Jr. of Dallas ranks No. 233 nationally with an estimated net worth of $7.4 billion. Last year: $6.5 billion.
• Oil and investment mogul Robert Bass of Fort Worth ranks 245th nationally with an estimated net worth of $7 billion. Last year: $6.1 billion.
• Media magnate and Cost Plus Drugs cofounder Mark Cuban of Dallas ranks No. 255 nationally with an estimated net worth of $6.8 billion. Last year: $6 billion.
• Margot Birmingham Perot of Dallas, widow of tech and real estate entrepreneur H. Ross Perot Sr., ranks No. 264 nationally with an estimated net worth of $6.4 billion. Last year: $5.7 billion.
• Oil and gas honcho Trevor Rees-Jones of Dallas ranks as No. 269 nationally with an estimated net worth of $6.2 billion. Last year: $5.9 billion.
• Airplane leasing industry founder Steven Udvar-Hazy of Westlake ranks No. 336 nationally with an estimated net worth of $5.1 billion. Last year: $4.5 billion.
• Oil and gas magnate Ray Davis of Dallas ties for 375th nationally with an estimated net worth of $4.6 billion. Last year: $3.5 billion.
• Oil heir Sid Bass of Fort Worth and private equity firm cofounder Carl Thoma of Dallas tie for No. 380 nationally with an estimated net worth of $4.5 billion. Last year: $3.8 billion and $4.4 billion, respectively.