The look of the Western Conference, Oak Harbor High School’s athletic league, will change next school year.

The Washington Interscholastic Activities Association announced the new school enrollments this week, and three Wesco schools will drop from 4A to 3A with the new counts.

The Cascade Conference, Coupeville’s league, will remain the same, though Sultan will shift from 2A to 1A.

The WIAA collects enrollments every two years and adjustments are made among its member schools and leagues based upon those numbers. The largest 17 percent (64 schools) are placed into 4A, the next 17 percent are 3A and so forth through the six classifications.

Schools can choose to go up one classification. For every school that opts up, one is pushed down to keep the divisions the same size.

Wesco’s Arlington, Edmonds-Woodway and Lynnwood will move from 4A to 3A next fall. The remaining eight 4A schools will form one division.

The 13 3A schools will be divided into two divisions.

Those divisions have not been announced, but most likely Oak Harbor, Stanwood, Arlington, Everett, Marysville-Pilchuck and Marysville Getchell will form the Wesco 3A North.

Marysville Getchell will be the largest 3A school in the state with 1,252 students. Oak Harbor is 14th with 1,165 students.

The eight-team Cascade Conference will have four 2A schools, Cedarcrest (691 students), Lakewood (554), Granite Falls (491) and Archbishop Murphy (369, opt up). The 1A schools include Coupeville (225), Sultan (428), South Whidbey (398) and King’s (368).

Coupeville is the smallest 1A school in the state, one student from being 2B.