Excellent
#362 of 2,228 schools in WA
Top 16% in state
Islander Middle School
Middle School · Mercer Island School District · Mercer Island, WA
A Mercer Island School District middle school serving grades 6th – 8th.
8225 SE 72ND, Mercer Island, WA 98040
- Math 69% vs WA 38% (2024)
- Reading 77% vs WA 49% (2024)
- 20.8:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Islander Middle School score 73% proficient, which is above what's typical for similar communities (expected: 71%).
2024 SBA proficiency
Most recent published year. School vs. WA average.
Trend
↓ DecliningProficiency has fallen 10 points since 2018, to 73% in 2024, across a 16-year record (2009–2024).
Show all 13 years
Multi-year averages used by the rating model: math 79% (multi-year average, 2009-2024) · reading/ELA 80% (multi-year average, 2009-2024)
Based on 34 test records from WA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
7.5%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Islander Middle School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Seattle map →
Getting around & local context
- Walk 47Car-Dependent
- Transit 22Minimal Transit
- Bike 43Somewhat Bikeable
- City Safety: Elevated1,278/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Mercer Island), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$202,359
Median home value
$1,884,200
Median rent
$2,464/mo
College educated
78.8%
Homeownership
66%
Poverty rate
4.6%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 98040; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Vera Risdon Middle SchoolEnrollment path unverified | 6.5 | 6–8 | 2.1 mi | 761 | Compare → |
| Aki Kurose Middle SchoolEnrollment path unverified | 7.6 | 6–8 | 2.6 mi | 783 | Compare → |
| Seattle Nativity SchoolPrivate · tuition | 6.0private | 6–8 | 2.6 mi | 75 | Compare → |
| Yellow Wood AcademyPrivate · tuition | 8.2private | 2–12 | 2.9 mi | 115 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Mercer Island School District
- Schools in district
- 6
- Rank in district
- #6 of 6
- District spending per student
- $17,288NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 2.7%Census SAIPE · 2024
Islander Middle School is listed in Mercer Island School District; a district label does not verify attendance for an address.
About Islander Middle School
Islander Middle School is a public middle school in Mercer Island, WA, part of Mercer Island School District, serving approximately 938 students in grades 6th-8th with a 20.8:1 student-teacher ratio. It holds a MySchoolScout rating of 8.2 out of 10 and ranks #362 of 2,228 schools in WA. State assessment records show 79% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Islander Middle School
What grades does Islander Middle School serve?
Islander Middle School serves students in grades 6th through 8th.
How many students attend Islander Middle School?
Islander Middle School has an enrollment of approximately 938 students.
What is the student-teacher ratio at Islander Middle School?
The student-teacher ratio at Islander Middle School is 20.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Islander Middle School rank in WA?
Islander Middle School ranks #362 of 2,228 schools in WA.
What is Islander Middle School's MySchoolScout rating?
Islander Middle School has a current MySchoolScout rating of 8.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Islander Middle School?
Based on loaded state assessment records, Islander Middle School has 79% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).
Is Islander Middle School a charter school?
No, Islander Middle School is not a charter school. It is a traditional public school operated by the local school district.
Is Islander Middle School a Title I school?
No, Islander Middle School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Islander Middle School?
7.5% of students at Islander Middle School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 6th – 8th
- Enrollment
- 938
- Student-Teacher Ratio
- 20.8:1
- Teachers (FTE)
- 45
- Type
- regular
- Setting
- Large Suburb
- County
- King County
- Chronic Absenteeism (SY 2022-23)
- 5.1%
- Phone
- (206) 236-3413
- Area population (ZIP 98040)
- 25,282
- Area average commute
- 24.9 min
- Area median age
- 45.8
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 SBA · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 SBA · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 98040; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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