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West Mercer Elementary

Mercer Island School District · Elementary · grades K-5 · 4141 81st Ave SE, Mercer Island, WA 98040-3928

Location

4141 81st Ave SE, Mercer Island, WA 98040-3928

Academic snapshot

Meeting standard — latest year

83.0%

SBAC ELA+Math combined, 2024-25

Meeting standard — 3-year

83.7%

#28 of 558 elementary schools region-wide · #3 of 4 in this district

Exceeding standard — latest year

59.4%

SBAC Level 4, the top score band

Exceeding standard — 3-year

60.3%

#34 of 558 elementary schools region-wide · #3 of 4 in this district

3-year trend Paid

▬ flat

Slope -0.9 pp/year

vs. demographically similar schools Paid p77 among 84 schools with similar low-income and ELL shares (±10 pp). Built from our matched peer set — not an OSPI statistic.

Who attends

Students from low-income homes

8.1%

English language learners

7.4%

Highly Capable program

11.4%

Enrollment

431

Kids per typical block

—

Density band: unknown

Teachers

Teachers (latest)

Avg years experience

14.8

MA-degree share

76.3%

3-year experience trend Paid

▬ flat

Change +0.5 yr

Avg years and MA-degree share are direct OSPI publications; the 3-year trend is our derivation. From data.wa.gov/yp28-ks6d.

Highly Capable / gifted pathway Paid

Self-contained HC cohort in grades 3-5 at West Mercer Elementary, branded as E2 (Expedition for Excellence). At Islander Middle School the HC program focuses on Science, English, and Social Science; other content areas integrate with the general population. Designed for students roughly in the top 2% cognitive aptitude and top 10% academically.

Curated from district Highly Capable program pages, with observed-at dates and confidence labels.

Parent capital (PTA / boosters) Paid

West Mercer PTSA Mercer Island Council 65.935 (FY 2023): $102,820 · 990

Aggregated from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per NMSC-style caveats elsewhere on this page, PTA revenue is one signal among many — it does not measure educational quality.

Research dossier

A full research dossier has not been generated for this school yet. A Research Pass still unlocks every paid metric on this page — trajectory, peer percentile, competition evidence, HCC pathway, and PTA capacity — across all schools.

More schools in Mercer Island School District

Island Park Elementary · elementary
Lakeridge Elementary School · elementary
Northwood Elementary School · elementary
Islander Middle School · middle
Mercer Island High School · high

All schools A–Z · Compare in the explorer

Sources

OSPI / Data.WA Report Card assessments, demographics, and personnel data
Census ACS 5-year child-density estimates (block group)
Washington Science Olympiad state tournament results
The Blue Alliance (FRC team registry)
Washington High School Chess Association podium results
Seattle Times annual WA National Merit Semifinalist list
ProPublica Nonprofit Explorer (PTA / booster Form 990)