The classification is determined by the average enrollment in grades 10 to 12. Shorewood had previously been a 4A school.
There are significantly more 3A schools in the Western Conference (WESCO) for the next two-year cycle as well. Below are the expected classifications for WESCO teams:
3A
Oak Harbor
Everett (pictured)
Glacier Peak
Meadowdale
Lynnwood
Mountlake Terrace
Shorecrest
Shorewood
Marysville-Getchell (opens in 2011)
4AStanwood
Arlington
Marysville-Pilchuck
Snohomish
Monroe
Lake Stevens
Cascade
Jackson
Mariner
Kamiak (pictured)
Edmonds Woodway
Everett photo from CityData
Kamiak photo by ShandaPanda
