La Sierra High School

  • Welcome to La Sierra!  At La Sierra, our shared goal is to provide the opportunity for all students to receive an exemplary education. We strongly believe that all students can learn the skills and concepts needed to go to college, and succeed in life.


    Principal's Message


School Announcements

  • The Parent Institute for Quality Education is coming to LSHS!

    Click here for more info and to sign up!

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  • Good Luck HOSA Students!

    58 HOSA students will be traveling to Sacramento to compete in the HOSA state conference during spring break.  Click here to watch their PSAs on Tobacco Free Generation/Dangers of Smoking.

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  • Prom 2019!

    Prom is 4/27 from 8pm - 12am at Central Park, Rancho Cucamonga.  Click here for for more information.

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  • Hey Class of 2019!!!

    • We want to celebrate all your hard work - tell us where you got accepted to college so we can recognize how awesome you are!

    Click here or use the QR code to fill out the Google Form:


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District Announcements

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    • The Alvord Unified School District will observe Spring Break from Monday, March 25 through Friday, March 29. Schools will resume on Monday, April 1. The District Offices will remain open to the public.
    • Las vacaciones de primavera del Distrito Escolar Unificado Alvord serán del lunes, 25 de marzo al viernes, 29 de marzo. Las clases se reanudarán el lunes, 1 de abril. Las oficinas del distrito permanecerán abiertas al público.
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