The station has one of the widest over-the-air coverage areas for what can be considered a high school radio station. Its signal is broadcast from Entercom's backup tower on Cougar Mountain, and covers an area from north of Seattle to roughly halfway into Tacoma, Washington and across the Puget Sound. The signal can be received as far east as Snoqualmie Pass and as far north as Victoria, British Columbia. It is licensed to Seattle. C89.5 attracts as many as 200,000 broadcast listeners per week.