Islander Middle School

Islander Middle School serves 938 students in grades 6-8 on Mercer Island, Washington, delivering strong academic performance in an affluent suburban setting. With 45 full-time equivalent teachers maintaining a 20.8:1 student-teacher ratio, the school has earned a solid 7.5 out of 10 rating from MySchoolScout and ranks in the 88th percentile statewide at #261 out of 2,261 Washington schools. The school's academic strength is particularly evident in English Language Arts and Reading, where 80% of students achieve proficient or above average performance across all grade levels.

This impressive achievement reflects both the school's educational approach and the highly educated community it serves, with 78% of neighborhood residents holding bachelor's degrees or higher. Islander Middle School operates within the 98040 zip code area of Mercer Island, where families enjoy a median household income of $190,985 and the community maintains a low 5.3% poverty rate. The neighborhood's commitment to education is further reflected in median home values of $1,683,600, indicating families who prioritize living in areas with strong schools.

The school sits in King County's large suburban environment, providing students with both the resources of a well-funded district and the close-knit feel of island community life.

The student-teacher ratio at Islander Middle School is 20.8:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.