For the 2025 school year, there is 1 public middle school serving 938 students in Mercer Island, WA. The top ranked public middle school in Mercer Island, WA is Islander Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Mercer Island, WA public middle school have an average math proficiency score of 76% (versus the Washington public middle school average of 36%), and reading proficiency score of 80% (versus the 51% statewide average). Middle schools in Mercer Island have an average ranking of 10/10, which is in the top 1% of Washington public middle schools.
Minority enrollment is 52% of the student body (majority Asian), which is more than the Washington public middle school average of 50% (majority Hispanic).
Best Public Middle Schools in Mercer Island, WA (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Islander Middle School
(Math: 76% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
8225 Se 72nd
Mercer Island, WA 98040
(206) 236-3413
Mercer Island, WA 98040
(206) 236-3413
Grades: 6-8
| 938 students
Mercer Island, Washington Public Schools (Closed)
School
Location
Grades
Students
Children's Institute For Learning Differences (Closed 2023)
Special Education School
4030 86th Ave Se Suite F
Mercer Island, WA 98040
(253) 945-2084
Mercer Island, WA 98040
(253) 945-2084
Grades: PK-12
| 1 students
Eeu Special Education Elementary School (Closed 2023)
Special Education School
4160 86th Ave Se
Mercer Island, WA 98040
(206) 236-3325
Mercer Island, WA 98040
(206) 236-3325
Grades: PK-4
| 4 students
Frequently Asked Questions
What are the top ranked public middle schools in Mercer Island, WA?
The top ranked public middle schools in Mercer Island, WA include Islander Middle School. Mercer Island has one of the highest concentrations of top ranked public schools in Washington.
How many public middle schools are located in Mercer Island?
1 public middle schools are located in Mercer Island.
What is the racial composition of students in Mercer Island?
Mercer Island public middle schools minority enrollment is 52% of the student body (majority Asian), which is more than the Washington public middle schools average of 50% (majority Hispanic).
Recent Articles

Texas Schools: The Voucher/School Choice Debate
The issue of school choice and a voucher system is currently being revisited in Houston and across the state of Texas, with strong opinions on both sides of the debate.

Fuel Up to Play 60 Focuses on Integrating Fitness and Wellness into the School Day
What if NFL players came to your school? With the Fuel Up to Play 60 program, sponsored by the National Dairy Council and the NFL, nutrition and exercise are promoted during the school day. NFL players participate in the program by coming to schools and talking to students about fitness. Learn more about the program and some of the schools that are implementing it.

What Parents Need to Know About Lunch Shaming
Students all over the nation go hungry every day not because their schools don鈥檛 offer lunch, but because they refuse them to children with outstanding debts. Read on to learn about the horror that is lunch shaming and what can be done about it.