The high school's athletic teams are named the Spartans.

[1] They are members of the South Puget Sound League and classified as a 4A school.

Its naming rights are held by Sunset Chevrolet, a car dealership located in downtown Sumner.

The lawsuit claims that the school district was aware of the sexual abuse, but did not take action until it was reported by news outlets.

In April 2023, Sumner High School basketball coach Jacob Jackson was charged with child rape and molestation, and subsequently fired from his position; two lawsuits were filed against him prior to the firing.