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Wildcats, Assemble!

Mount Si student body loves a good assembly!

State Champs!

Congratulations to our girls cross country team on claiming the 4A WIAA State Championship. 

State Results

MSHS Named One of the Top High Schools

Mount Si earns national honors from the U.S. News and World Reports, placing in the top 10 percent of public high schools. 

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NMSC students
Mount Si seniors recognized by the National Merit Scholarship Corporation

Congrats to these amazing students!

ASB fill the truck event
The ASB's Fill the Truck event was a success!

MSHS ASB collected items for the local food banks over the weekend. Thank you to our wonderful community for their donations!

News & Announcements

Upcoming Events

By The Numbers


Students Enrolled


Graduation Rate

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New Campus Opened

young woman graduate