For the 2025 school year, there are 6 public schools serving 3,975 students in 98040, WA (there are 7 private schools, serving 1,073 private students). 79% of all K-12 students in 98040, WA are educated in public schools (compared to the WA state average of 90%).
The top ranked public schools in 98040, WA are Island Park Elementary School, Mercer Island High School and Lakeridge Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public schools in zipcode 98040 have an average math proficiency score of 80% (versus the Washington public school average of 40%), and reading proficiency score of 85% (versus the 53% statewide average). Schools in 98040, WA have an average ranking of 10/10, which is in the top 1% of Washington public schools.
Minority enrollment is 51% of the student body (majority Asian), which is less than the Washington public school average of 52% (majority Hispanic).
Best 98040, WA Public Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Island Park Elementary School
(Math: 85-89% | Reading: 90-94%)
Rank:
Rank:
10/
Top 1%10
5437 Island Crest Way
Mercer Island, WA 98040
(206) 236-3410
Mercer Island, WA 98040
(206) 236-3410
Grades: K-5
| 361 students
Rank: #22.
Mercer Island High School
(Math: 82% | Reading: 94%)
Rank:
Rank:
10/
Top 1%10
9100 Se 42nd
Mercer Island, WA 98040
(206) 236-3345
Mercer Island, WA 98040
(206) 236-3345
Grades: 9-12
| 1,465 students
Rank: #33.
Lakeridge Elementary School
(Math: 85% | Reading: 88%)
Rank:
Rank:
10/
Top 5%10
8215 Se 78th
Mercer Island, WA 98040
(206) 236-3415
Mercer Island, WA 98040
(206) 236-3415
Grades: K-5
| 403 students
Rank: #44.
West Mercer Elementary School
(Math: 83% | Reading: 86%)
Rank:
Rank:
10/
Top 5%10
4141 81st Ave Se
Mercer Island, WA 98040
(206) 236-3430
Mercer Island, WA 98040
(206) 236-3430
Grades: K-5
| 410 students
Rank: #55.
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
Rank: #66.
Northwood Elementary School
(Math: 75-79% | Reading: 75-79%)
Rank:
Rank:
10/
Top 10%10
4030 86th Ave Se
Mercer Island, WA 98040
(253) 841-8740
Mercer Island, WA 98040
(253) 841-8740
Grades: PK-5
| 398 students
98040, 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 schools in 98040, WA?
The top ranked public schools in 98040, WA include Island Park Elementary School, Mercer Island High School and Lakeridge Elementary School.
How many public schools are located in 98040?
6 public schools are located in 98040.
What percentage of students in 98040 go to public school?
79% of all K-12 students in 98040 are educated in public schools (compared to the WA state average of 90%).
What is the racial composition of students in 98040?
98040 public schools minority enrollment is 51% of the student body (majority Asian), which is less than the Washington public schools average of 52% (majority Hispanic).
Recent Articles

What Is A Charter School?
Explore the world of charter schools in this comprehensive guide. Learn about their history, how they operate, and the pros and cons of this educational innovation. Discover key facts about charter schools, including admission policies, demographics, and funding, as well as what to look for when considering a charter school for your child.

10 Reasons Why High School Sports Benefit Students
Discover the 10 compelling reasons why high school sports are beneficial for students. This comprehensive article explores how athletics enhance academic performance, foster personal growth, and develop crucial life skills. From improved fitness and time management to leadership development and community representation, learn why participating in high school sports can be a game-changer for students' overall success and well-being.

February 05, 2025
Understanding the U.S. Department of Education: Structure, Impact, and EvolutionWe explore how the Department of Education shapes American education, from its cabinet-level leadership to its impact on millions of students, written for general audiences seeking clarity on this vital institution.