The unidentified blonde recently seen appearing close with Kevin Costner has been named as Jennifer Milburn, a glamorous lifestyle coach who is 31 years younger than the Hollywood actor and has ties to his vast Aspen property.
The Daily Mail has identified Milburn, 40, as the woman photographed accompanying the twice-divorced 71-year-old star during a supermarket trip near his $145 million California estate earlier this month.
Costner and Milburn were photographed at an Albertsons in Santa Barbara, filling their cart with steaks, vegetables, grapefruit juice and cereal. Witnesses said the pair appeared “extremely affectionate” while shopping.
Milburn, meanwhile, has done little to put an end to questions surrounding her apparent relationship with the actor.
When reached by the Daily Mail, she confirmed that she was the woman seen with Costner but ended the call when asked whether the two were romantically involved.
Although the pair were spotted together in California, their apparent connection may have originated in Colorado, where Costner has long-standing ties.
The Daily Mail has identified the mystery blonde seen grocery shopping with Kevin Costner earlier this month as lifestyle coach Jennifer Milburn.
According to social media, Milburn also has a connection to one of Costner’s favorite destinations, having worked for nearly six years at Aspen western retailer Kemo Sabe.
Milburn has substantial links to the exclusive Rocky Mountain enclave where Costner owns his spectacular 160-acre Dunbar Ranch.
A former Delta flight attendant, Milburn spent almost six years at celebrity-favored western retailer Kemo Sabe in Aspen, modeled for local brands and uses the Instagram handle ‘@theaspenjenn’.
Social media also offers a glimpse into her part-time modeling career in the exclusive ski resort town, where she can be seen posing on horseback and sprawling ranches for a local jeans brand.
Currently, she has a remote position as director of partnerships for a firm called Simon Sinek’s The Optimism Company, according to her LinkedIn profile.
Dubbed ‘the ultimate luxury retreat’, Costner’s Dunbar Ranch is so vast it’s been likened to a mini town. The property has 12 bedrooms and eight bathrooms, and can comfortably sleep 27 people.
He purchased the land in 2000 before transforming it into a picturesque paradise.
She also appears to have modeled clothing part-time for local businesses in the exclusive Rocky Mountains resort town, including being photographed at a ranch for a jeans brand
She also appeared in a catalog for pajamas for Aspen Dream brand
Milburn was seen getting cozy with Costner during a trip to Albertsons supermarket earlier this month
The television star is known to split his time between his homes in California and Colorado – where he has been seen mingling with other A-listers at glitzy star-studded parties over the winter holidays.
He was previously spotted enjoying drinks with Jennifer Lopez at hotspot Kemo Sabe – where Milburn once worked.
Costner’s links to Milburn come after the twice-divorced Yellowstone star was reported last year to have quietly found love again with filmmaker Kelly Noonan Gores, in what sources described at the time as a ‘private and casual’ romance.
His apparent relationship with Noonan Gores, ex-wife of billionaire Alex Gores, was first revealed in August 2025 after the two spent time together in Aspen.
It was reported they met through mutual friends, with US Weekly quoting a source saying: ‘After such a public and expensive divorce, he’s being cautious.’
They ‘see each other when schedules allow, often spending time at his Santa Barbara estate’ and ‘love dinners at home, walks on the beach and quiet nights in,’ the source said at the time.
The pair were all smiles as they browsed the aisles together, with Milburn pushing their shopping cart
They picked up steaks, vegetables, grapefruit juice, and Kellogg’s Frosted Flakes during the supermarket run
Milburn was dressed casually in a loose, white button shirt, denim cut off shorts, and slip-on sandals
At the meat counter, Milburn appeared to take charge, pointing out their selections as Costner stood alongside her
Another claimed that Costner was ‘not looking for a serious relationship or marriage any time soon.’
Yet his recent outing with Milburn has now fueled fresh speculation that he has a new woman in his life.
Costner and Milburn were seen in exclusive Daily Mail photos getting cozy during the September trip to the supermarket.
They made no apparent attempt to keep the outing under wraps, with a casually-dressed Costner smiling alongside his female companion as she wheeled the cart around the store.
At one point, Milburn even took the lead by pointing out their preferences at a meat counter.
They were later seen headed back to Costner’s gray Mercedes-Benz in the parking lot, where the actor dutifully returned the shopping cart.
Milburn previously worked at celebrity-favorite western apparel store Kemo Sabe, in Aspen, which Costner is known to frequent. He is seen in a photo posted by the business after one of his visits
Dubbed ‘the ultimate luxury retreat’, Costner’s Dunbar Ranch is so vast it’s been likened to a mini town
Costner was previously linked to Kelly Noonan Gores (left) who was married to billionaire Alec Gores from 2016 to 2024. He was married to Christine Baumgartner from 2004 until their 2023 separation; pictured in March 2022. She has since moved on, marrying Josh Connor in October last year
Their brief supermarket sweep occurred only a few miles from Santa Barbara County Court, where Costner’s bitter divorce battle with ex-wife Christine Baumgartner played out in 2023.
The divorce became final in February 2024 after an eye-popping battle over cash and assets.
The legal battle revealed astonishing household spending as Baumgartner, who filed for the divorce, at one point demanded $248,000 a month for support of children Cayden, now 19, Hayes, 17, and 16-year-old Grace.
Costner was ultimately ordered to pay Baumgartner, now remarried, $63,209 in monthly child support for their three children and $1.5 million to her personally.
Court documents also revealed Costner’s Aspen compound cost $1,964,294 to operate in 2022.
The property has two large lakes and is equipped with a dozen ATVs and snowmobiles, which the children had enjoyed riding, the papers stated.