Why this matters
Demographic composition shapes every other number on a school profile. High-poverty schools face structural headwinds — not because of students themselves, but because of funding gaps, staff turnover, and reduced access to enrichment. The Free/Reduced Lunch rate is the most-cited poverty proxy in US K-12 data. Trend it alongside teacher turnover and chronic absence for the clearest picture.
What we're seeing
At Mercer Island High, student body composition has risen 107% over the 5-year window — from 3% in 2020 to 7% in 2023. The gap vs US average of 52% (FRL) has narrowed — from 49% below in 2020 to 45% below in 2023.