Graduates in blue gowns joyfully toss their caps into the air during a graduation ceremony under cloudy skies.

Longmont High School

Founded as Longmont’s original high school in 1901, Longmont High offers rigorous Advanced Placement coursework, Concurrent College Enrollment partnerships, a unique Medical and BioScience Academy, and the High School of Business program.

Longmont Feeder Strong

We are the Trojans

Tradition, Pride, and Excellence

College Credit Opportunities

LHS offers one of the state’s largest selections of Advanced Placement & CU Succeed courses

Unique Pathways

Home to the Medical and BioScience Academy and the High School of Business 

State Champions

Award winning DrumLine, Basketball, and Swimming teams

School Overview

Recent Updates

View our latest news and announcements.

Class of 2026 Updates/Novedades sobre los Graduados de 2026 Featured

Read here for the details. Leer aquí para los detailes.

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St. Vrain Valley Schools Earns National Recognition as a Best Community for Music Education for Sixth Consecutive Year

St. Vrain Valley Schools has been recognized by the NAMM Foundation as one of the nation’s Best Communities for Music Education, marking the district’s sixth consecutive year receiving this prestigious honor. This national designation celebrates school districts that demonstrate exceptional commitment to ensuring all students have access to high-quality music education as part of a…<br><a title="St. Vrain Valley Schools Earns National Recognition as a Best Community for Music Education for Sixth Consecutive Year" href="https://www.svvsd.org/2026/04/29/st-vrain-valley-schools-earns-national-recognition-as-a-best-community-for-music-education-for-sixth-consecutive-year/" class="button read-more-link"><span class="sr-only">St. Vrain Valley Schools Earns National Recognition as a Best Community for Music Education for Sixth Consecutive Year </span>Read More</a>

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Students Take the Lead at SMART Team Symposium

 Longmont High’s MBSA program hosts national showcase of student-driven scientific research On March 28, the Innovation Center became a hub of scientific curiosity and collaboration as St. Vrain Valley Schools hosted the SMART (Students Modeling A Research Topic) Team Colorado Symposium. The event, led by the Longmont High School MBSA Program, brought together nine student…<br><a title="Students Take the Lead at SMART Team Symposium" href="https://www.svvsd.org/2026/04/13/students-take-the-lead-at-smart-team-symposium/" class="button read-more-link"><span class="sr-only">Students Take the Lead at SMART Team Symposium </span>Read More</a>

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graduate walking with diploma

Contact Us

Have a question or comment? Send us a message and we will get back to you as soon as possible.

Postal address

1040 Sunset St.

Longmont, CO 80501

Phone number
303-776-6014

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Longmont High School