Contact Us

  • Main Campus Office 

    Phone: 425.831.8100
    Attendance: 425.831.8200
    Counseling: 425.831.8150
    Athletics: 425.831.8103
    Hours: 7:00 - 3:30 p.m.
     

    Freshman Campus Office

    Phone: 425.831.8450
    Attendance: 425.831.8450
    Counseling: 425.831.8475
    Hours: 7:00 - 3:30 p.m.
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ANNOUNCEMENTS

Welcome to MSHS

Mount Si High School is the sole comprehensive high school in the Snoqualmie Valley School District, serving approximately 1,600 students in grades 9-12. Opening in 1945, Mount Si High School offers a safe, positive learning environment with a comprehensive program to inspire learning and challenge students as they prepare for college and 21st Century careers. Students have access to rigorous college preparatory curriculum, exceptional career technical education programs, and a rich array of elective classes and extracurricular activities to expand their skills and interests.

School Profile

MSHS School Profile 2014-15