Throughout all of its past years, Jackson has been well known for its sports. In 2006, boys' baseball won the 4A State championship. In 2008 and 2014, girls' swimming won first in state. In 2010 girls' volleyball won first in state. Also in 2008, both girls' and boys' basketball made it to state. In 2010 boys' basketball won second in state. In the fall of 2010, football won the WESCO championship for the third straight year. In addition, boys' cross country in the fall of 2009 was ranked first in the nation and was only beat by the second in the nation later on. This was the boys' second consecutive year placing 2nd in the 4A Washington State Cross Country Championships. In the fall of 2008, all of the fall sports except volleyball made it to the playoffs. Other sports like track have also met with success. In the 2009–2010 season for volleyball the girls won state. On March 2, 2013 the Jackson boys' basketball team placed second in state, losing the championship game to
Curtis High School and finished the season with a 26–1 record, losing only the championship game. Six of the seven players used were juniors. In the spring 22-23 season of softball, the Timberwolves went 28-1 overall and 8-1 in districts. They finished the last game of the season against
Glacier Peak High School 5-1, winning the WIAA. More recently, the 2024 Timberwolves football team made it to the playoffs for the first time since 2012. ==Notable alumni==