How Old Is Kourtney Kardashian — Kourtney Kardashian was born April 18, 1979, making her 47 years old as of June 26, 2026. She turns 48 on April 18, 2027 per People and Biography.com verified records.

Biography.com and People list Kourtney Kardashian's birth date as April 18, 1979, in Los Angeles, California. That Aries birthday anchors every age calculation fans search for online.

To answer how old is Kourtney Kardashian, subtract 1979 from the current year and adjust if today is before April 18. June 26, 2026 means age 47 because her April birthday already passed this year.

From Keeping Up with the Kardashians at twenty-eight to Poosh at forty and Lemme at forty-three, Kourtney Kardashian's age tracks a reality-to-wellness empire arc spanning two decades.

Kourtney Kardashian turns 48 on April 18, 2027 — the same date fans mark every year with birthday posts and social media tributes. She is 47 throughout June 2026 after that milestone passed.