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Lakeridge Elementary School

Mercer Island School District · Elementary · grades K-5 · 8215 SE 78th St, Mercer Island, WA 98040-5901

Location

8215 SE 78th St, Mercer Island, WA 98040-5901

Academic snapshot

Meeting standard — latest year
87.6%
SBAC ELA+Math combined, 2024-25
Meeting standard — 3-year
87.3%
#15 of 558 elementary schools region-wide · #2 of 4 in this district
Exceeding standard — latest year
70.1%
SBAC Level 4, the top score band
Exceeding standard — 3-year
71.7%
#7 of 558 elementary schools region-wide · #1 of 4 in this district
3-year trend

Who attends

Students from low-income homes
3.7%
English language learners
2.7%
Highly Capable program
39.2%
Enrollment
401
Kids per typical block
—
Density band: unknown

Teachers

Teachers (latest)
33
Avg years experience
13.9
MA-degree share
87.9%
3-year experience trend

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

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

Research dossier

Lakeridge Elementary School: What The Data Says

Lakeridge Elementary School is an elementary school in Mercer Island School District. The local dataset puts it at grade span K-5 with enrollment of 401. The headline academic number: 87.3% combined ELA/math meeting standard across the available three-year data, with 87.6% in the latest year.

The useful question is not just whether the scores are high. It is whether the school combines academics, access, peer depth, and day-to-day fit in a way that works for a specific child.

The Short Version

  • Local structured data: 87.3% combined ELA/math over available three-year data; 88.8% ELA and 85.8% math.
  • Access is the first filter: Attendance-area school. Resident enrollment by address; nonresident Choice Transfer only if the grade/program is open.
  • Program status is a live issue: Code 33 Highly Capable holistic services are provided in a unique self-contained classroom at Lakeridge Elementary for the 2025-2026 school year (MISD Highly Capable Services).
  • There is public evidence of advanced peer depth: Lakeridge Elementary won 1st place in the Rd 5 standings of a recent 2026 local chess tournament (ChessReg Standings).
  • The surrounding block group is Low for kid density, about 1.6 estimated kids per typical block.

Researched 2026-06-10. Citations and claim ledger included in the full dossier.

That is the free excerpt. The full dossier continues with the complete evidence review: academic outcomes in context, advanced-peer depth, program and access analysis, culture signals, logistics, neighborhood context, open questions, and every citation.

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