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Welcome to Horizon High School

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Horizon High School is committed to excellence on all fronts — academic achievement, arts, athletics and co-curricular activities. Horizon balances a holistic liberal arts education with rigorous content-specific curriculum to equip students for success beyond graduation.

Teachers and staff get to know students as individuals, guiding them through the wide variety of academic experiences at Horizon. Academically, students are challenged to think critically and problem solve. During their high school years, Horizon students develop a strong work ethic that empowers them to take responsibility for their choices, decisions and future.

In a safe, caring community, Horizon fosters global thinking and transformative experiences that shape students for success in the 21st-century world.

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Congratulations Horizon High School for being recognized as a
2019 National Gold Council of Excellence

Unique Programs

The SOAR program is a four year, comprehensive program which provides an accelerated, rigorous course load across three majors: Humanities, Fine and Performing Arts, and Math/Science.
The Big Idea Project provides students quality experiential education opportunities to schools to build student leadership, wellbeing, workforce readiness and applied skills. Check back on our Big Idea Project Webpage for Big Idea opportunities! 

Social Media

Follow us on Facebook and Twitter

Click here for information about the 2020 yearbook, including senior photo instructions and deadlines.

Adams 12 Five Star Schools is one of 547 school districts in the United States and Canada to earn a place on the 5th Annual AP District Honor Roll for increasing access to AP course work while simultaneously maintaining or increasing the percentage of students earning scores of 3 or higher on AP Exams.


Address5321 E. 136th Avenue
Thornton , CO
Office Phone720-972-4400
Fax Number720-972-4599
Office Hours7:00 am - 3:30 pm
School Hours
7:15 am - 3:00 pm
Early Release
7:10 am - 12:30 pm

Upcoming Events

2020 Wish Week: Camo Day

2020 Wish Week: Camo Day

Date & Time: Mon, 01/27/2020 (All day)

Camo Day! Not all students are seen!

01/27/2020 (All day)
Jan 27

2020 Wish Week: Tie Dye Day

2020 Wish Week: Tie Dye Day

Date & Time: Tue, 01/28/2020 (All day)

Tie Dye Day!

So we can all blend together!

01/28/2020 (All day)
Jan 28

2020 Wish Week: Hat Day

2020 Wish Week: Hat Day

Date & Time: Wed, 01/29/2020 (All day)

Hat Day!

**Must purchase wristband**


On sale at all entrances!

01/29/2020 (All day)
Jan 29

2020 Wish Week: Sports Jersey Day

2020 Wish Week: Sports Jersey Day

Date & Time: Thu, 01/30/2020 (All day)

Sports Jersey Day!

Play Unified

With Unified

Be sure to purchase our wish week shirt in the lobby! $5.00

01/30/2020 (All day)
Jan 30

2020 Wish Week: Unity Day

2020 Wish Week: Unity Day

Date & Time: Fri, 01/31/2020 (All day)

Unity Day!

Wear your wish week shirt or wear red!

Assembly @ 9:00am!

Be sure to bring your spare change for DECA's Miracle Minute!

01/31/2020 (All day)
Jan 31

Upcoming Sports

Boys' Basketball @ Loveland

Boys' Basketball @ Loveland

Date & Time: Fri, 01/24/2020 - 6:30pm to 7:30pm

C & JV 5:00
D & Varsity 6:30

01/24/2020 - 6:30pm
Jan 24

Girls' Basketball vs Loveland

Girls' Basketball vs Loveland

Date & Time: Fri, 01/24/2020 - 7:00pm to 8:30pm

C 4:00
JV 5:30

01/24/2020 - 7:00pm
Jan 24

Wrestling @ Berthoud

Wrestling @ Berthoud

Date & Time: Sat, 01/25/2020 - 8:00am to 9:00am

01/25/2020 - 8:00am
Jan 25

Girls' Swim @ Legacy

Girls' Swim @ Legacy

Date & Time: Tue, 01/28/2020 - 3:30pm to 4:30pm
Location: VMAC

01/28/2020 - 3:30pm
Jan 28