- Enrollment
- 1,439
- Students per teacher
- 19.4:1
- Resource Index
- 52/100
Elementary school (grades K-5) · Mercer Island, WA
West Mercer Elementary
Federal NCES profile for West Mercer Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 62/100.
2024-25 NCES dataElementary school (grades K-5)NCES 530498000765
👥 S:T ratio 25
🌟 Gifted program 70
📋 Attendance 91
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
West Mercer Elementary earns 62/100 on the Resource Investment Index, with class sizes larger than 70% of Washington schools.
- #2 of 3
- elementary schools in Mercer Island · Resource Index
- 62
- Resource Index · Higher
- 18.7:1
- large classes for Washington
- 5.0%
- free-lunch eligible
West Mercer Elementary has class sizes larger than 70% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, West Mercer Elementary ranks #2 of 3 elementary schools in Mercer Island, WA.
School address
District: Mercer Island School District · Washington
NCES ID 530498000765 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-12 students YoY
West Mercer Elementary held near 410 students from 2022-23 to 2023-24 (-12 headcount).
Teacher FTE added 23.4 → 25.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-12 students YoY 530498000765 · Mercer Island, WA Elementary · SMALL · TRAD
431 enr · 18.7:1 · 5.0% lunch · RII 62
Nearest enrollment peer: Mercer Island High School (1,439 students)
West Mercer Elementary held near 410 students from 2022-23 to 2023-24 (-12 headcount). Teacher FTE added 23.4 → 25.5 across the same CCD years. Read with this school → · District book → · Washington schools → · Find another →
West Mercer Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Mercer Island
Mercer Island High School
1,439 students
- Islander Middl
Islander Middle School
960 students
- This school 431
West Mercer Elementary
431 students
- Lakeridge Elem 401
Lakeridge Elementary School
401 students
- Northwood Elem 398
Northwood Elementary School
398 students
- Island Park El 364
Island Park Elementary
364 students
What this shows West Mercer Elementary reports 431 students on the CCD universe file.
How West Mercer Elementary compares
West Mercer Elementary 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 | 18.7:1 | ▲ 6% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 5.0% | ▼ 89% | 45.0% | 51.7% |
| Enrollment | 431 | top 42% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.7:1
Leaner classes than 21% of US schools, heavier class loads than most.
431
Bigger than 52% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
5.0%
free-lunch eligible
- 89% 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
18.7:1
students per teacher
- 6% above state mean
Top 70% in Washington - lower ratio than 30% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
3.5%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 6 expulsions.
Student demographics
White 41.8%
Asian 32.7%
Two or More 14.3%
Hispanic or Latino 8.2%
African American 2.8%
American Indian / Alaska Native 0.2%
Largest group: White at 41.8% of enrollment.
Student-body diversity index 69.0/100
Simpson diversity index - at 69.0, West Mercer Elementary 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 West Mercer Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mercer Island High School | Larger | Similar economic need | Similar S:T ratio |
| Islander Middle School | Larger | Similar economic need | Higher S:T ratio |
| Lakeridge Elementary School | Similar size | Similar economic need | Similar S:T ratio |
| Northwood Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Island Park Elementary | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to West Mercer Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 960
- Students per teacher
- 20.9:1
- Resource Index
- 51/100
- Enrollment
- 401
- Students per teacher
- 19.1:1
- Resource Index
- 62/100
- Enrollment
- 398
- Students per teacher
- 15.3:1
- Resource Index
- 66/100
- Enrollment
- 364
- Students per teacher
- 15.8:1
- Resource Index
- 65/100
Similar elementary schools in Mercer Island
2 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~431 students)
Frequently asked questions about West Mercer Elementary
How many students attend West Mercer Elementary?
West Mercer Elementary has 431 students enrolled. It is an elementary school in Mercer Island, WA. CCD year-over-year: 422 (2022-23) → 410 (2023-24), nearly flat (-12).
What is the student-teacher ratio at West Mercer Elementary?
The student-teacher ratio at West Mercer Elementary is 18.7:1, which is 6% higher than the Washington average of 17.6:1 and 19% higher than the national average of 15.7:1.
What percentage of students receive free lunch at West Mercer Elementary?
5.0% of students at West Mercer Elementary are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of West Mercer Elementary?
The largest demographic group at West Mercer Elementary is White at 41.8% of enrollment, in Mercer Island, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.0/100.
What is the Resource Investment Index for West Mercer Elementary?
West Mercer Elementary has a Resource Investment Index of 62/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does West Mercer Elementary rank among elementary schools in Mercer Island?
By Resource Investment Index, West Mercer Elementary ranks #2 of 3 elementary 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 elementary schools in Mercer Island on the city page.
What other schools are in Mercer Island School District?
Besides West Mercer Elementary, Mercer Island School District also operates Mercer Island High School (1,439 students), Islander Middle School (960 students), and Lakeridge Elementary School (401 students). See the Mercer Island School District district page for the complete list.