Middle school (grades 6-8) · Mercer Island, WA

Islander Middle School

Federal NCES profile for Islander Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.

2024-25 NCES dataMiddle school (grades 6-8)NCES 530498000764
Compare schools View district
Compiled from official source data by .
0/100100/10051/100
👥 S:T ratio
16
🌟 Gifted program
70
🎓 Counselors
35
📋 Attendance
83
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Islander Middle School earns 51/100 on the Resource Investment Index, with class sizes larger than 83% of Washington schools.

#6 of 6
public schools in Mercer Island · Resource Index
51
Resource Index · Higher
20.9:1
large classes for Washington
3.4%
free-lunch eligible

Islander Middle School has class sizes larger than 83% of Washington schools. Computed live against every Washington school reporting to NCES.

By Resource Investment Index, Islander Middle School ranks #6 of 6 public schools in Mercer Island, WA.

School address

Mercer Island, WA 98040
District: Mercer Island School District · Washington

NCES ID 530498000764 Verify on NCES CCD record →

CCD year-over-year · 2022-23 → 2023-24

+8 students YoY

Islander Middle School held near 938 students from 2022-23 to 2023-24 (+8 headcount).

Teacher FTE lost 46.6 → 45.8 across the same CCD years.

Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).

Steady CCD campus

+8 students YoY 530498000764 · Mercer Island, WA Middle · MID · TRAD

960 enr · 20.9:1 · 3.4% lunch · RII 51

Nearest enrollment peer: Mercer Island High School (1,439 students)

Islander Middle School held near 938 students from 2022-23 to 2023-24 (+8 headcount). Teacher FTE lost 46.6 → 45.8 across the same CCD years. Read with this school → · District book → · Washington schools → · Find another →

Islander Middle School in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Islander Middle School reports 960 students on the CCD universe file.

Source U.S. Department of Education, NCES Common Core of Data (Public School Universe) As of 2024-25

How Islander Middle School compares

Islander Middle School held steady on CCD headcount: ratios and free-lunch share vs Washington and U.S. means.

Metric This school vs Washington Washington avg U.S. avg
Students per teacher 20.9:1 ▲ 19% 17.6:1 15.7:1
Free-lunch eligible 3.4% ▼ 92% 45.0% 51.7%
Enrollment 960 top 7% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

20.9:1
Leaner classes than 13% of US schools, heavier class loads than most.
960
Bigger than 90% of US schools by enrollment, a large campus nationally.

Equity indicators methodology

Economic need
3.4%
free-lunch eligible - 92% below the Washington average of 45.0%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
20.9:1
students per teacher - 19% above state mean
Top 83% in Washington - lower ratio than 17% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
7.0%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$17,288
per pupil, district-wide - below Washington avg of $20,912
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors3.0 FTE
Per 325 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 2 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.2 per 100 students. Reported via the Civil Rights Data Collection.

Student demographics

White 46.0%
Asian 32.0%
Two or More 13.2%
Hispanic or Latino 7.7%
African American 0.9%
American Indian / Alaska Native 0.1%

Largest group: White at 46.0% of enrollment.

Student-body diversity index 66.3/100

Simpson diversity index - at 66.3, Islander Middle School is more mixed than the Washington school average of 53.3.

Programs

Gifted & talented Yes

District finance for Mercer Island School District reports $17,288 per pupil (NCES F-33) - open the district page for the full revenue mix.

How Islander Middle School Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Mercer Island High School Larger Similar economic need Lower S:T ratio
West Mercer Elementary Smaller Similar economic need Lower S:T ratio
Lakeridge Elementary School Smaller Similar economic need Lower S:T ratio
Northwood Elementary School Smaller Similar economic need Lower S:T ratio
Island Park Elementary Smaller Similar economic need Lower S:T ratio

Comparisons are relative to Islander Middle School's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Mercer Island School District · 5 sibling schools

View district profile

Nationwide middle schools with similar size or staffing

Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.

Similar enrollment (~960 students)

Similar student-teacher ratio (~20.9:1)

Frequently asked questions about Islander Middle School

How many students attend Islander Middle School?

Islander Middle School has 960 students enrolled. It is a middle school in Mercer Island, WA. CCD year-over-year: 930 (2022-23) → 938 (2023-24), nearly flat (+8).

What is the student-teacher ratio at Islander Middle School?

The student-teacher ratio at Islander Middle School is 20.9:1, which is 19% higher than the Washington average of 17.6:1 and 33% higher than the national average of 15.7:1.

What percentage of students receive free lunch at Islander Middle School?

3.4% of students at Islander Middle School are eligible for free lunch, compared to the Washington average of 45.0%.

What is the racial and ethnic makeup of Islander Middle School?

The largest demographic group at Islander Middle School is White at 46.0% of enrollment, in Mercer Island, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.3/100.

What is the Resource Investment Index for Islander Middle School?

Islander Middle School has a Resource Investment Index of 51/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).

How does Islander Middle School rank among public schools in Mercer Island?

By Resource Investment Index, Islander Middle School ranks #6 of 6 public schools in Mercer Island, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mercer Island on the city page.

What other schools are in Mercer Island School District?

Besides Islander Middle School, Mercer Island School District also operates Mercer Island High School (1,439 students), West Mercer Elementary (431 students), and Lakeridge Elementary School (401 students). See the Mercer Island School District district page for the complete list.

Read our methodology - how this data is sourced, computed, and verified.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2022-23) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

View saved
Compiled from official source data by .