 For the years 2010 through 2012, 9 schools opted up to 2B classification; 5 to 1A, 1 to 2A, 24 to 3A, and 4 schools opted up to 4A classification.In the past schools have opted up in order to prevent leagues from dissolving, as the Eastside Prep Eagles did in the 2012-2013 season, opting up from 1B to the 1A Emerald City, now playing schools with over double their enrollment.source

The WIAA is divided into nine districts that represent approximate geographical areas.