Mercer Island High School
Mercer Island, WA · Mercer Island School District · Grades 9-12
5th of 437 Washington high schools statewide · better than 99%· Stable
Mercer Island High School ranking
SchoolRow ranks Mercer Island High School 5th of 437 Washington high schools for 2024–25, based on WA Smarter Balanced / WCAS 2024–25 English and Math results — better than 99% of high schools statewide. Its statewide percentile went from 99th in 2019 to 99th in 2025.
Mercer Island High School test scores
Percent meeting or exceeding the state standard, WA Smarter Balanced / WCAS 2024–25 · 343 students tested
Mercer Island High School students
Racial and ethnic breakdown of 1,465 students (2023–24, NCES) — and how it has shifted since 2013
| Group | Trend | 2013 | 2023 | Change |
|---|---|---|---|---|
| White | 71.7% | 53.2% | ▼ 18.5 pts | |
| Asian | 20.2% | 24.8% | ▲ 4.6 pts | |
| Two or more races | 2.5% | 12.8% | ▲ 10.3 pts | |
| Hispanic | 3.3% | 6.6% | ▲ 3.3 pts | |
| Black | 1.7% | 1.4% | ▼ 0.3 pts |
Homes near Mercer Island High School
Typical home value $2.32M in zip 98040 as of 2026-05 · trend since 2000
Data Provided by Zillow Group
High schools near Mercer Island High School
Closest same-level schools, with 2024–25 state rank
- 10Newport Senior High SchoolBellevue School District · 2.2 mi away7th of 437
ELA 87% · Math 73% - 10Bellevue High SchoolBellevue School District · 2.4 mi away14th of 437
ELA 85% · Math 66% - 1Rainier Valley Leadership AcademyRainier Valley Leadership Academy · 3.1 mi away · charter397th of 437
ELA 22% · Math 10% - 10International SchoolBellevue School District · 3.2 mi away3rd of 437
ELA 90% · Math 84% - –Bellevue Open Doors ReengagementBellevue School District · 3.3 mi away
- –Interagency Open DoorsSeattle School District No. 1 · 3.3 mi away
- 6Franklin High SchoolSeattle School District No. 1 · 3.4 mi away176th of 437
ELA 62% · Math 25% - 8Bellevue Big Picture SchoolBellevue School District · 3.9 mi away105th of 437
ELA 59% · Math 43%
Frequently asked questions
What school district is Mercer Island High School in?
Mercer Island High School is part of the Mercer Island School District district in Mercer Island, Washington.
Is Mercer Island High School a good school?
SchoolRow ranks Mercer Island High School 5th of 437 Washington high schools (better than 99% statewide) based on 2024–25 test results (WA Smarter Balanced / WCAS 2024–25).
What is the racial makeup of Mercer Island High School?
White 53%, Asian 25%, Two or more races 13%, Hispanic 7% (1,465 students, 2023–24).
How much do homes near Mercer Island High School cost?
The typical home value in zip code 98040 is $2.32M as of 2026-05 (Zillow ZHVI).
Sources: state education department data (WA Smarter Balanced / WCAS 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.