Chinook Middle School
Seatac, WA · Highline School District
Regular public school · Grades 6-8 · Suburb, large
329th of 381 Washington middle schools statewide · better than 14%▼ Declining
18650 42nd Ave S, Seatac, WA 98188
(206)631-5700NCES ID 530354000524Directory 2023–24
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.
Percent meeting or exceeding the state standard, WA Smarter Balanced / WCAS 2024–25 · 584 students tested
Racial and ethnic breakdown of 603 students (2023–24, NCES) — history since 1988, with comparable seven-category changes from 2010
| Group | Trend | 2010 | 2023 | Change |
|---|---|---|---|---|
| Hispanic | 37.6% | 37.5% | ▼ 0.1 pts | |
| Black | 12.6% | 20.2% | ▲ 7.6 pts | |
| Asian | 15.3% | 14.3% | ▼ 1.0 pts | |
| White | 14.1% | 10.8% | ▼ 3.3 pts | |
| Pacific Islander | 5.0% | 10.0% | ▲ 5.0 pts | |
| Two or more races | 14.5% | 7.0% | ▼ 7.5 pts | |
| American Indian | 1.0% | 0.0% | ▼ 1.0 pts |
NCES history for this school begins in 1988. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.
Typical home value $592K in zip 98188 as of 2026-05 · trend since 2000
Data Provided by Zillow Group
Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Chinook Middle School
- #340Showalter Middle SchoolTukwila School District · 2.8 mi away340th of 381
ELA 26% ▼5 · Math 18% ▲2Compare - #336Pacific Middle SchoolHighline School District · 2.8 mi away336th of 381
ELA 30% ▼1 · Math 15% ▼1Compare - #374Glacier Middle SchoolHighline School District · 3.1 mi away374th of 381
ELA 15% ▼16 · Math 10% ▼6Compare - #230Sylvester Middle SchoolHighline School District · 3.2 mi away230th of 381
ELA 41% ▲10 · Math 31% ▲15Compare - #271Nelsen Middle SchoolRenton School District · 4.2 mi away271st of 381
ELA 38% ▲7 · Math 26% ▲10Compare - #375Mill Creek Middle SchoolKent School District · 4.2 mi away375th of 381
ELA 15% ▼16 · Math 9% ▼7Compare - #259Dimmitt Middle SchoolRenton School District · 4.5 mi away259th of 381
ELA 39% ▲8 · Math 28% ▲12Compare - #232Meeker Middle SchoolKent School District · 5.1 mi away232nd of 381
ELA 40% ▲9 · Math 32% ▲16Compare
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.