According to state police at Huntingdon, Jonah Lawrence Klemens, 19, left his foster care home in Wood Township on Thursday and did not return.
Klemens is believed to be in the Johnstown area and was last seen wearing a black Nike hoodie, black sweatpants and black shoes, police said.
Anyone with information regarding his whereabouts can contact police at 627-3161.
Sign Up and Save
Get six months of free digital access to the Centre Daily Times