Stewie is eternally young, but his exact age is shrouded in secrecy. It's unclear the exact number of years Stewie became living. The baby persona from the animated television show "Family Guy" is age-defying. His number of years is yet discovered.
Stewie Griffin, the clever little troublemaker, is impossible to determine from the world. Speculation abounds as to how many years he has been alive. Is he over a hundred years old? Or is he a recent arrival? The truth lies only with Stewie! This enigmatic character
continues to mesmerize fans with his undisclosed age and perpetually youthful visage.
Lois Griffin Matriarch of The Griffins