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Chinook Middle School

Seatac, WA · Highline School District · Grades 6-8

329th of 381 Washington middle schools statewide · better than 14% Declining

603
Students
2023–24 enrollment
16.3:1
Student / teacher ratio
77%
Free / reduced-price lunch
low-income indicator
28.3%
Chronically absent
WA average 27%

Chinook Middle School ranking

SchoolRow ranks Chinook Middle School 329th of 381 Washington middle schools for 2024–25, based on WA Smarter Balanced / WCAS 2024–25 English and Math results — better than 14% of middle schools statewide. Its statewide percentile went from 27th in 2019 to 14th in 2025 — declining.

Statewide percentile by year
25%50%75%14%201920202025no testing 2020–21

Chinook Middle School test scores

Percent meeting or exceeding the state standard, WA Smarter Balanced / WCAS 2024–25 · 584 students tested

English Language Arts
This school
31%
WA average
51%
Math
This school
16%
WA average
41%
Science
This school
28%
WA average
43%
English Language Arts over time this school WA average
25%50%75%31%51%201920202025no testing 2020–21
Math over time this school WA average
25%50%75%16%41%201920202025no testing 2020–21

Chinook Middle School students

Racial and ethnic breakdown of 603 students (202324, NCES) — and how it has shifted since 2013

Hispanic38%White11%Asian14%Black20%7%Pac. Isl.10%
Hover the pie for details
Hispanic 38%White 11%Asian 14%Black 20%Two or more races 7%Pacific Islander 10%43%15%14%15%8%20132023
GroupTrend20132023Change
Hispanic42.9%37.5% 5.4 pts
Black15.3%20.2% 4.9 pts
Asian13.7%14.3% 0.6 pts
White14.6%10.8% 3.8 pts
Pacific Islander8.1%10.0% 1.9 pts
Two or more races4.6%7.0% 2.4 pts
American Indian0.9%0.0% 0.9 pts

Homes near Chinook Middle School

Typical home value $592K in zip 98188 as of 2026-05 · trend since 2000

$157K$313K$470K$626K$593K200020052010201520202025

Data Provided by Zillow Group

See recently sold homes in 98188 on Zillow →

Middle schools near Chinook Middle School

Closest same-level schools, with 2024–25 state rank

View on the map →

Frequently asked questions

What school district is Chinook Middle School in?

Chinook Middle School is part of the Highline School District district in Seatac, Washington.

Is Chinook Middle School a good school?

SchoolRow ranks Chinook Middle School 329th of 381 Washington middle schools (better than 14% statewide) based on 2024–25 test results (WA Smarter Balanced / WCAS 2024–25).

What is the racial makeup of Chinook Middle School?

Hispanic 38%, Black 20%, Asian 14%, White 11% (603 students, 2023–24).

How much do homes near Chinook Middle School cost?

The typical home value in zip code 98188 is $592K as of 2026-05 (Zillow ZHVI).

Sources: state education department data (WA Smarter Balanced / WCAS 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.