How Old Is Kourtney Kardashian? Her Age, Birthday, and Fascinating Life Story

How old is Kourtney Kardashian? As of September 2026, Kourtney Kardashian is 47 years old. She was born on April 18, 1979, in Los Angeles, California. Her birthday makes her an Aries, and she is the eldest of the Kardashian siblings.

For many fans, Kourtney has been a familiar face for nearly two decades. She first became widely known through Keeping Up With the Kardashians, which premiered in 2007 and turned the Kardashian-Jenner family into one of the most recognizable names in modern reality television. Since then, Kourtney has developed a career that reaches beyond television, including entrepreneurship, lifestyle projects, and wellness businesses.

Kourtney Kardashian’s Age in 2026

Kourtney Kardashian is 47 years old in 2026. Because her birthday falls on April 18, she celebrated her 47th birthday earlier this year. Her birth date, April 18, 1979, is consistently reported by biographical sources.

Her Date of Birth

Kourtney Mary Kardashian was born on April 18, 1979, in Los Angeles, California. She was the first child of Kris Jenner and Robert Kardashian, making her the oldest Kardashian sister. Her younger siblings include Kim Kardashian, Khloé Kardashian, and Rob Kardashian.

Being the oldest sibling has often been part of Kourtney’s public identity. Long before social media made celebrity families an everyday part of popular culture, she was already living a highly visible life through her family’s television projects.

Kourtney Kardashian Quick Bio

Kourtney Kardashian is an American television personality, entrepreneur, and businesswoman. She became internationally recognized after the launch of Keeping Up With the Kardashians in 2007. Over the years, she has appeared in the main series and several related television projects.

Birthplace and Family

Kourtney was born and raised in Los Angeles, California. Her father, Robert Kardashian, was a prominent attorney, while her mother, Kris Jenner, later became famous for managing the careers and business interests of her children. Kourtney’s family grew even larger after Kris married Caitlyn Jenner, giving her additional step-siblings and half-sisters.

Education

Kourtney attended Marymount High School in Los Angeles before studying at Southern Methodist University in Dallas. She later transferred to the University of Arizona, where she earned a bachelor’s degree.

Kourtney Kardashian’s Early Life

Growing up in Los Angeles placed Kourtney close to the entertainment and fashion worlds, but her fame did not arrive overnight. Before her family’s biggest television success, she had already experimented with entertainment and business opportunities.

Growing Up in Los Angeles

Kourtney’s childhood was shaped by a large, ambitious family. Her father’s legal career and her mother’s business interests exposed the children to public attention, while the family continued to build its own identity in Los Angeles.

That background later became an important part of the story told through reality television. Viewers were able to watch Kourtney and her siblings move from relatively private family life into a global media spotlight.

Her Rise to Reality TV Fame

Kourtney’s biggest career breakthrough came in 2007 when Keeping Up With the Kardashians premiered. The series followed the Kardashian-Jenner family as they navigated relationships, business ventures, family disagreements, celebrations, and everyday life in front of cameras.

Keeping Up With the Kardashians

The show became a major part of popular culture and eventually ran for 20 seasons. Kourtney also appeared in several spin-off programs, including projects centered on her relationships and experiences with sisters Kim and Khloé.

Her personality on television was often different from the louder, more dramatic image associated with reality TV. Kourtney developed a reputation for being direct, independent, and protective of her personal life.

Kourtney Kardashian’s Career

Kourtney’s career has never been limited to appearing on television. Over the years, she has combined entertainment with fashion, lifestyle, retail, and wellness.

Television and Media

Reality television remains one of the defining chapters of Kourtney’s professional life. Her appearances on the family’s original E! series and its spin-offs helped establish her as a recognizable celebrity in her own right. The Kardashian-Jenner television story later continued with The Kardashians.

Business Ventures

Kourtney has also explored several businesses outside television. Earlier ventures included the DASH clothing boutique, which she operated with her sisters. The family eventually closed the DASH stores in 2018, while Kourtney later concentrated more heavily on lifestyle and wellness projects.

Kourtney Kardashian as an Entrepreneur

One of the most interesting parts of Kourtney’s career is the way she developed a business identity separate from her television fame. Her entrepreneurial work has increasingly focused on lifestyle and wellness.

Poosh and Wellness

Kourtney launched Poosh in 2019 as a lifestyle and wellness platform. She later became involved with Lemme, a supplement and wellness company launched in 2022. These businesses demonstrate how she has used her public profile to build consumer-focused brands beyond entertainment.

Kourtney Kardashian’s Family Life

Kourtney is also known for her role as a mother. She has three children with Scott Disick: Mason, Penelope, and Reign. Her family life has been featured at different points throughout her television career, although she has also emphasized the importance of protecting parts of her private life.

Her Children

Motherhood has remained an important part of Kourtney’s public identity. Her experiences as a parent have frequently appeared in Kardashian family programming, giving viewers a different perspective on her life away from business and celebrity events.

Kourtney Kardashian’s Birthday and Zodiac Sign

Kourtney celebrates her birthday on April 18. Because she was born on that date, her zodiac sign is Aries. Astrology sources identify her as an Aries and use her April 18, 1979 birth date in their profiles.

Her birthday is also notable because she is the oldest Kardashian sibling. That distinction has remained part of the family’s public story for years.

Frequently Asked Questions

How old is Kourtney Kardashian in 2026?

Kourtney Kardashian is 47 years old in 2026. She was born on April 18, 1979, and turned 47 on April 18, 2026.

When is Kourtney Kardashian’s birthday?

Kourtney Kardashian’s birthday is April 18. She was born in Los Angeles, California, in 1979.

What year was Kourtney Kardashian born?

Kourtney Kardashian was born in 1979. Her complete birth date is April 18, 1979.

Is Kourtney Kardashian the oldest Kardashian sister?

Yes. Kourtney is the oldest of Kris Jenner’s Kardashian children. Her younger siblings are Kim Kardashian, Khloé Kardashian, and Rob Kardashian.

What is Kourtney Kardashian’s zodiac sign?

Kourtney Kardashian’s zodiac sign is Aries, because her birthday is April 18.

Conclusion

So, how old is Kourtney Kardashian? In 2026, she is 47 years old. Born on April 18, 1979, in Los Angeles, Kourtney has spent nearly two decades in the public eye, progressing from reality television personality to entrepreneur and wellness-focused businesswoman.

Her story is more than simply a celebrity age search. Kourtney’s career shows how a reality television personality can build a separate business identity while maintaining a strong connection with family, motherhood, lifestyle, and wellness. From her early television appearances to her modern entrepreneurial projects, she has remained an important figure in the Kardashian family’s long-running media story.