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    Chief Sealth International High School

    Phone: 206-252-8550
    Contact office staff

    Main Office Hours Monday - Friday 8:30 a.m. to 2:30 p.m.
    (Building CLOSED due to COVID)

    School Hours: 9 a.m. - 3:50 p.m.
    Early Release Wednesday: 9 a.m. - 2:35 p.m.
    View the School Bell Schedule
    Artwork of CSI auditorium by alumnus Abraham Tesfasalasie

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