Menu

Chinook Middle School
18650 42nd Avenue South SeaTac, WA 98188

Office Hours:

Monday-Friday: 7:30 a.m. - 3:30 p.m.

Chinook Middle School
18650 42nd Avenue South SeaTac, WA 98188

You Are About To Leave the Chinook Middle School Website

You are now leaving the Highline website and will be redirected to a third-party application or website. This site may have advertisements or other content not necessarily endorsed or approved by Highline Public Schools. 

Home Page Container

Three young women with long dark hair are standing in a hallway, surrounded by bulletin boards and other classroom decor.

Welcome to Chinook Middle School

Upcoming Events

Latest News

""

Several Highline schools have been nominated for The Seattle Times’ 2026 Best in the PNW contest. We celebrate our students, staff, families and community partners who make these schools places where students are known by name, strength and need. Vote by 5:00 p.m. Friday, June 26, at VotethePNW.com.

Highline Headlines - June 5

The Highline Headlines include information about the last day of school, a correction to senior last day, sneak peek to the 2026-27 school calendar, a bond recommendation made to the board, free summer meals and more. 

Students in the classroom

Highline is financially stable because of steady enrollment and difficult budget adjustments made in recent years. To maintain that stability, the proposed 2026–27 budget includes about $8 million in reductions, including central office reductions, while prioritizing resources that directly support students and classrooms.

The Promise Podcast Our People. Our Stories. with Dr. Duran and Tamasha Emedi-Frye

Glacier Middle School Principal Tamasha Emedi-Frye joins Dr. Ivan Duran to talk about leadership, belonging and building a school culture where students and staff choose each other every day. Listen to this episode of The Promise Podcast.

student at computer

We are helping students understand AI, use it responsibly and know when not to use it. With new staff guidance, student learning opportunities and summer training, Highline is preparing classrooms to use AI in ways that support learning, privacy, equity and student success.

calendar graphic

Time to start planning! Here is a look at the tentative 2026-27 school calendar. The calendar will be final after Highline Education Association (HEA) members vote on it in August. 

student and staff member at EGS graduation

Highline Public Schools is preparing to celebrate the Class of 2026. Find graduation dates, ticket information, arrival details and reminders for students and families as ceremonies approach.

north hill educator and student

We are reducing next year’s district budget by $8 million while protecting students and classrooms as much as possible. Learn more at the June 3 School Board work session and share feedback during the June 24 public hearing at Central Office or online.

tyee student in class

We are shifting from Secondary Redesign to School Redesign to connect learning across Highline from preschool through graduation. This work builds rigorous, relevant and career-connected experiences at every stage, helping students develop the skills, confidence and interests they need for the future they choose.

Our Vision

Together we create and sustain a culture of achievement where all students excel!

Explore our Vision