The PSUA generally services the following high schools in Clackamas, Multnomah, Washington and Yamhill Counties:
6A: Aloha HS, Barlow HS, Beaverton HS, Benson HS, Central Catholic HS, Century HS, Clackamas HS, Cleveland HS, David Douglas HS, Forest Grove HS, Franklin HS, Glencoe HS, Grant HS, Gresham HS, Ida B. Wells HS, Jesuit HS, Lake Oswego HS, Lakeridge HS, Liberty HS, Lincoln HS, McDaniel HS, Mountainside HS, Nelson HS, Newberg HS, Oregon City HS, Reynolds HS, Roosevelt HS, Sandy HS, Sherwood HS, Southridge HS, Sunset HS, Tigard HS, Tualatin HS, West Linn HS, Westview HS
5A: Centennial HS, Hillsboro HS, La Salle HS, Milwaukie HS, Parkose HS, Putnam HS, Wilsonville HS
4A: Estacada HS, Gladstone HS, Portland Christian, Scappoose HS, St. Helen’s HS
3A: Corbett HS, Portland Adventist Academy, Valley Catholic HS
2A/1A: Faith Bible HS, Portland Christian HS, Vernonia HS
