York was again selected to compete for Team USA at the 2019 IIHF World U18 Championships on April 11, 2019. During the tournament, he set a new scoring record for defenseman in U18 Men's World Championship history. His 17 points collected during the 2018 and 19 series helped earn him the honor of Three Best Players of the tournament for Team USA, U.S. Player of the Game, and a bronze medal.