Will Byers is 17 years old in Stranger Things Season 5.

Character Age

Born on March 22, 1971, Will starts the series at 12 years old during the events of 1983.

By Season 5, set around late 1987 or early 1988, he reaches 17, aligning with peers like Mike and Eleven.

Actor Age

Noah Schnapp, who plays Will, is 21 years old as of late 2025.

Schnapp was around 11 when filming Season 1 began, making him close to the character's initial age.