Island Park Elementary

Set in Mercer Island, Washington, Island Park Elementary is a reasonably sized primary school, operated by Mercer Island School District. It hosts 364 students across grades K through 5.

Mercer Island School District comprises 6 schools with combined enrollment of 3,993 students; Island Park Elementary is among them.

On the student-mix side, Island Park Elementary lists that White students make up the majority at 56%; the rest reads as 20% Asian, 17% multiracial, 7% Hispanic. That mix tracks the wider county fairly closely.

In terms of school funding signals, Staff filings list 24 full-time-equivalent teachers, which works out to roughly 14.9:1 students per teacher. That figure is tighter than the state norm's 17.3:1 average. About 2% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against King County (around 38%), the school's rate is south of typical.

On a demographically-adjusted basis, Island Park Elementary performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 78.7%, the actual is 88.0%, a residual of +9.3 points.

In the surrounding community, community-level numbers for King County indicate the typical household earns roughly $124,746 per year, 57% of adults hold a bachelor's degree or higher, and the poverty rate sits near 5%. Island Park Elementary is one of 544 public schools in King County (combined enrollment of about 278,492 students).

Islander Middle School is the nearest neighboring public school, about 1.2 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Island Park Elementary. On composite proficiency, Island Park Elementary comes 1st of 9 in the immediate cluster, ahead of the nearby-schools average of 75.1%.

Geographically, the school is in a commuter-belt area.

Looking at the recent track record. Looking back 7 years, enrollment at Island Park Elementary has declined 13%, going from 420 students in 2018 to 364 in 2025. White enrollment moved from 64% to 56% across the same window. Class-load math has pulled in: from 16.5:1 in 2018 to 14.9:1 in 2025.

Inside the community feed, the feed for Island Park Elementary typically covers science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.