Liam Costner was born on Nov 15, 1996 (29 years old), in the United States. He is the son of famous Hollywood actor Kevin Costner and actress Bridget Rooney. Even though he comes from a family full of celebrities, Liam has chosen to stay away from the entertainment world. Instead of acting or making movies like his father, he has built his own career in real estate. He currently works with the Frankel Bell Group in Northern Palm Beach County, Florida, where he helps people buy and sell luxury homes.

Despite having one of the most well-known last names in Hollywood, Liam has created his own path in life. His work in real estate shows that he is serious about making a name for himself outside of the film industry.

Early Life and Family Background

Rooney, were never married. They had a short relationship and separated before Liam was born. At first, there was some question about who Liam’s father was. Kevin Costner himself asked for a DNA test, which confirmed that Liam was indeed his son. After that, Kevin accepted Liam and has supported him financially throughout his life. Over time, their bond has grown stronger, although Liam likes to keep his personal life private.

Liam grew up in a large blended family. From Kevin Costner’s first marriage to Cindy Silva, Liam has three older half-siblings: Annie, Lily, and Joseph. Annie Clayton, his eldest half-sister, is a well-known Hollywood film director. From Kevin’s second marriage to Christine Baumgartner, which ended in divorce in 2024, Liam has three younger half-siblings: Cayden, Hayes, and Grace. In total, Liam has six half-siblings, making his family quite large and diverse.

His mother, Bridget Rooney, also comes from a very well-known American family. The Rooney family owns the Pittsburgh Steelers, one of the most famous teams in the NFL. Bridget later married billionaire businessman Bill Koch, which means Liam also has connections to one of the wealthiest families in the country.

Education and Personal Life

Liam Costner has kept most of his educational background private. Unlike many children of celebrities who attend famous schools and share their experiences with the public, Liam has not revealed much about where he went to school or college. What we do know is that he moved into the real estate field as a young adult, which shows he has strong business skills and an interest in the property market rather than entertainment.

Career in Real Estate

Liam Costner works as a real estate agent with the Frankel Bell Group, one of the top real estate teams in Florida. The group deals with properties in Northern Palm Beach County, which includes upscale areas like Jupiter, Palm Beach Gardens, and nearby communities. This part of Florida is known for its expensive waterfront homes, luxury estates, and golf course properties that attract wealthy buyers from all over the country.

Working in such a high-end market is not easy. Liam’s job requires him to network with clients, understand local property trends, help buyers and sellers negotiate deals, and provide expert analysis of the housing market. His clients often value privacy and discretion, which fits well with Liam’s own personality since he also prefers to keep a low profile.

Liam Costner’s Age in 2026

As of 2026, Liam Costner is 29 years old. He was born on November 15, 1996, and will turn 30 later this year in November 2026. He is in the best years of his working life, combining youthful energy with growing experience in real estate.

Liam Costner’s Parents

Kevin Costner

Liam’s father, Kevin Costner, is one of the biggest names in Hollywood. His career as an actor, director, and producer has lasted more than four decades. He is best known for movies like Dances with Wolves (which won him two Academy Awards), The Bodyguard, Field of Dreams, and the hit TV series Yellowstone.

In 2024, Kevin Costner officially left Yellowstone after playing the lead role of John Dutton for five seasons. He stepped away due to scheduling conflicts with his personal film project, Horizon: An American Saga. The first chapter of Horizon was released in June 2024, and the second chapter premiered at the Santa Barbara International Film Festival in February 2025.

As of early 2026, Kevin Costner is staying busy with several new projects. He executive produced The Gray House, an eight-part Western series with Morgan Freeman that was released on Prime Video in February 2026 and has been a hit with viewers. He is also working on upcoming films like Headhunters (2026) and Honeymoon with Harry, a comedy with Jake Gyllenhaal.

Kevin Costner’s net worth in 2026 is estimated to be around $200 million to $250 million, according to major financial sources. During his 2023 divorce from Christine Baumgartner, court documents showed his total estate, including real estate properties, was worth around $400 million.

Bridget Rooney

Liam’s mother, Bridget Rooney, is an actress who appeared in the 2011 film Zombie or Not Zombie. She is best known, however, as a member of the powerful Rooney family that owns the Pittsburgh Steelers NFL team. Bridget is currently married to billionaire businessman Bill Koch, adding to Liam’s family connections with some of America’s wealthiest people.

Although Kevin and Bridget’s romantic relationship ended many years ago, they both remain connected through their son Liam.

Liam Costner’s Net Worth in 2026

Liam Costner’s exact net worth is not publicly confirmed, and different sources give different numbers. As of 2026, most reliable sources estimate his net worth to be between $1 million and $8 million. Some websites have claimed much higher figures, even up to $800 million, but these numbers are not considered accurate given his career as a real estate agent.

The lower estimates of around $1 million to $2 million are based on his earnings from real estate work. The higher estimates of up to $8 million may include family trust funds, financial support from his father Kevin Costner, and possible connections to his stepfather Bill Koch’s wealth.

What is clear is that Liam is focused on building his own financial future through hard work in the property market. Rather than depending entirely on his family’s money, he is making an effort to earn his own living and grow professionally.

Height and Weight

Liam Costner stands at about 5 feet 8 inches (172 cm) tall and weighs around 62 kilograms (136 lbs). He appears to maintain a healthy and active lifestyle, which helps him keep up with the demands of his real estate career.

Relationship Status

As far as the public knows, Liam Costner is currently single. Unlike many celebrity children who openly date other public figures or share glimpses of their romantic life on social media, Liam keeps this part of his life private. There have been no confirmed reports of relationships, and he appears focused on his career and personal growth.

Interesting Facts About Liam Costner

• Celebrity Parents: He is the son of Oscar-winning actor Kevin Costner and actress Bridget Rooney.
• Blended Family: He has six half-siblings — three older (Annie, Lily, Joseph) and three younger (Cayden, Hayes, Grace).
• Famous Connections: His half-sister Annie Clayton is a Hollywood director. His mother’s family owns the Pittsburgh Steelers NFL team. His stepfather Bill Koch is a billionaire businessman.
• Real Estate Career: He works with the Frankel Bell Group in Northern Palm Beach County, Florida, specializing in luxury properties.
• Very Privacy Person: He rarely appears in the media and does not have a major presence on social media.
• Chooses His Own Path: Despite having a famous father, Liam has chosen real estate over acting and prefers to stay out of the spotlight.

Final Thoughts

Liam Costner is a great example of someone who comes from a famous family but has chosen to live life on his own terms. While he could have easily followed his father into Hollywood, he decided to build his own career in real estate. Working in one of Florida’s most competitive luxury property markets, he has shown that he is serious about creating his own success.

By keeping his personal life private and staying focused on his work, Liam has set himself apart from many other children of celebrities. He uses his resources to build independence rather than relying on his family name. Whether he continues in real estate or moves into other business areas in the future, it is clear that Liam Costner prefers to do things his own way.

Frequently Asked Questions About Liam Costner