WashingtonSchoolsIsland Park Elementary

Island Park Elementary

PublicRegular
Mercer Island, Washington · Mercer Island School District
Students361enrolled
FRL2%Free/Reduced Lunch
Ratio16.4:1students:teacher
LevelPrimary0–5
SCHOOL SNAPSHOT
Students361
Grade Span0–5
Student:Teacher16.4:1
Free/Reduced Lunch2%
Title INo
SectorPublic

Academic Performance

State accountability indicators and test performance.

WA WSIF · 2025
WA WSIF 2025: Foundational

Performance indicators

proficiency_ela_decile
10
proficiency_math_decile
10
proficiency_combined_decile
10
growth_ela_decile
9
growth_math_decile
9
other_academic_combined_decile
9
el_progress_decile
10
regularattendance_decile
9
sqss_combined_decile
9
_2025_score
9.45
overall
Foundational

Source: California Department of Education — School Dashboard 2025 release.

Student test scores

Percentage of students who met or exceeded the grade-level standard on the most recent state assessment. Each tile is colour-coded: green ≥50%, amber 35-49%, red <35%.

ELA · SBA

Grade 3
90%
n=72
Grade 4
91%
n=55
Grade 5
97%
n=61
Overall
92%
n=188

Math · SBA

Grade 3
84%
n=72
Grade 4
95%
n=55
Grade 5
92%
n=61
Overall
90%
n=188

Source: SBA 2024. “Proficient” includes students who met or exceeded the standard; small-cell data (fewer than ~10 students) is suppressed by the state and shown as “—”.

How this state measures performance

State-specific testing and accountability details will appear here once the WA Department of Education data ingest completes.