How Old Is Kate Chastain? Age, Birthday and Bio Facts

Kate Chastain is 43 years old. She was born on January 2, 1983, in Melbourne Beach, Florida, USA. Her full name is Kathryn Dorothy Chastain. She is best known as Chief Stewardess on Bravo’s reality series Below Deck, where she appeared from 2014 to 2020 across six seasons.

Kate Chastain’s Age and Date of Birth

Kate Chastain was born on January 2, 1983, making her 43 years old as of 2026. Her birth sign is Capricorn — a detail that her fans often bring up given her reputation for being sharp, disciplined, and direct on screen.

She turned 43 at the start of 2026, continuing a streak of staying very much in the public eye well past her Below Deck years.

Early Life — Where Did Kate Chastain Grow Up?

Family Background

Kate was born in Melbourne Beach, Florida. Her mother’s name is Jerri Renee Hastey and her father’s name is Michael Monastery. Her parents later divorced, and her mother remarried a man named Michael Hastey. Kate has two sisters and two brothers.

Her father, Michael Monastery, was a rock musician — an upbringing that likely played a role in Kate’s comfort with public attention and performance. Growing up near the Florida coast, she developed a natural connection to the water that would later shape her entire career.

Education and Early Career Path

After high school, Kate attended the University of Central Florida, where she earned a degree in organisational communication. During her college years, she worked in upscale dining establishments, where she discovered a natural talent for hospitality and customer service — skills that would later define her yachting and television career.

That combination of academic grounding and hands-on hospitality experience set her apart from many who enter the yachting world without any formal background.

How Kate Chastain Built Her Yachting Career

From Laundry Stewardess to Chief Stew

Kate began yachting at the age of 24. Her first job on a yacht was as a laundry stewardess. She earned her first Chief Stewardess position after two years in that role.

That progression — laundry stewardess to Chief Stew in just two years — is faster than most in the industry manage. Yacht hierarchies are strict, and moving up requires both exceptional performance and the trust of captains and owners. Kate clearly earned both.

Kate Chastain on Below Deck — Career Timeline

Kate joined Below Deck as Chief Stewardess on the show’s second season, starting the role at 30 years old. She appeared on the series from 2014 to 2020, becoming one of the franchise’s most prominent cast members.

Her run on the show covered six seasons and 94 episodes, a tenure that made her one of the longest-serving and most recognisable cast members in Bravo reality TV history. Her working relationship with Captain Lee Rosbach became one of the franchise’s most-watched dynamics, built on mutual respect and sharp, dry humour.

After leaving Below Deck, Kate returned to her Below Deck roots in 2021 with her involvement in Galley Talk.

Life After Below Deck — What Is Kate Doing in 2026?

Kate has not slowed down since leaving Below Deck full-time. She competed on both the first and second seasons of The Traitors in the United States, and is currently appearing in Season 3 of House of Villains.

Kate Chastain and Vanderpump Rules alum Tom Sandoval are both appearing on the new season of House of Villains, which premiered in early 2026 on Peacock.

On top of that, Kate moved into her forever home in early January 2025 — a 100-year-old property in Florida that reflects her preference for character and history over modern design.

She has also launched Couch Talk with fellow Below Deck legend Captain Lee Rosbach, a show where the two break down major moments across Bravo’s programming.

Kate Chastain’s Personal Life and Family

In December 2022, Kate announced she was pregnant with her first child, with a due date of May 2023. She gave birth to a son named Sullivan Cay Chastain.

She has kept the details of Sullivan’s father private, a decision she has addressed briefly in interviews. As of 2026, Kate is single and focused on raising her son in her Florida home.

In 2017, Kate founded Genesis Boutique, a non-profit resale store benefiting Genesis House, an organisation that supports homeless women and children. This side of her public persona rarely gets coverage, but it reflects a commitment that runs deeper than her on-screen image.

Kate Chastain Net Worth

Kate’s net worth has been estimated by various sources at between $300,000 and $500,000, though these figures are not officially confirmed. Her income comes from television appearances across multiple networks, book sales, podcast work, and brand endorsements.

Her book Lucky Charming, which draws on her years of experience as a yacht stewardess, became an Amazon Best Seller in the Humor category.

FAQs

How old is Kate Chastain in 2026?

Kate Chastain is 43 years old in 2026. She was born on January 2, 1983.

What is Kate Chastain’s real name?

Her full birth name is Kathryn Dorothy Chastain.

Does Kate Chastain have children?

Yes. Kate has one son, Sullivan Cay Chastain, born in May 2023. She has chosen to keep details about his father private.