Photo: Studio Publicity, Public domain, via Wikimedia Commons
Actor
Jill St. John
American actress
Jill St. John is 86 years old, born on August 19, 1940 in Los Angeles.
Next birthday in 288 days, turning 87.
Official links: Wikipedia
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Jill’s birthday, by the numbers
- Jill St. John was born on a Monday.
- Jill St. John has been alive for about 31,488 days.
- Their 35,000-day milestone falls on June 16, 2036.
- Their next birthday, turning 87, is on a Thursday.
- Next milestone: Jill St. John turns 90 on August 19, 2030, in 3 years and 9 months. More milestone birthdays
- Jill St. John is younger than 181 and older than 6,665 of the living celebrities on CFOTD.
- Half birthday: February 19. Birthstone: Peridot and spinel.
- Jill St. John belongs to Born before 1946, the stars born before the Baby Boom.
Age gaps
- When Jill St. John was born, Marilyn Monroe was 14. Compare
- Jill St. John was 25 when Shah Rukh Khan was born. Compare
Born within weeks of Jill
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Birth dates and details from Wikidata (checked October 15, 2026, newest names added October 27, 2026). Ages update every day. Photos are freely licensed and credited on each profile. How we build this site · Report a mistake
Frequently asked questions
How old is Jill St. John?
Jill St. John is 86 years old, born on August 19, 1940 in Los Angeles.
What is Jill St. John’s zodiac sign?
Leo, born August 19.