Class Size Information

As part of our commitment to communication and transparency in the district, we annually publicize information regarding class sizes in the Mercer Island School District.

The elementary class size ratio reflects the average class size by grade level (average class size student ratio to 1 teacher), as delineated below: 

Elementary Class Sizes (Headcount as of 10/1/16)

KindergartenGolden Island Park Elementary

17.0 to 1 – Kindergarten

23.3 to 1 – 1st Grade

22.3 to 1 – 2nd Grade

21.7 to 1 – 3rd Grade

22.3 to 1 – 4th Grade

22.7 to 1 – 5th Grade

Lakeridge Elementary

17.7 to 1 – Kindergarten

23.0 to 1 – 1st Grade

23.0 to 1 – 2nd Grade

23.1 to 1 – 3rd Grade

24.5 to 1 – 4th Grade

24.7 to 1 – 5th Grade

Northwood Elementary

21.7 to 1 – Kindergarten

21.3 to 1 – 1st Grade

24.1 to 1 – 2nd Grade

24.2 to 1 – 3rd Grade

23.3 to 1 – 4th Grade

23.1 to 1 – 5th Grade

West Mercer Elementary

17.0 to 1 – Kindergarten

17.7 to 1 – 1st Grade

22.3 to 1 – 2nd Grade

26.3 to 1 – 3rd Grade

26.0 to 1 – 4th Grade

25.3 to 1 – 5th Grade

The secondary class size ratio reflects the average class size by subject area (average class size student ratio to 1 teacher), as delineated below:

Islander Middle School Average Class Sizes (10/1/16)

33.8 to 1 – Music

27.1 to 1 – PE/Health

27.1 to 1 – Math/Science

26.4 to 1 – Language Arts/Social Studies

04.6 to 1 – Special Programs (Special Ed, ELL)
26.0 to 1 – World Language 

Mercer Island High School Average Class Sizes (10/1/16)

34.7 to 1 – Music

17.7 to 1 – English/Social Studies

21.3 to 1 – Math/Science

14.1 to 1 – World Languages
07.7 to 1 – Special Programs (Special Ed, ELL)
24.3 to 1 – PE/Health
16.9 to 1 – Career Education
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