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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.

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 opportunites to schools to build student leadership, wellbeing, workforce readiness and applied skills. Check back on our Big Idea Project Webpage for Big Idea opportunites! 

Social Media

Follow us on Facebook and Twitter


Click here for yearbook, baby ad, and senior photo info


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.

Contact

Address5321 E. 136th Avenue
Thornton , CO
Office Phone720-972-4400
Attendance720-972-4597
Fax Number720-972-4599
Office Hours7:00 am - 3:30 pm
School Hours
M,Tu,Th,F
7:15 am - 3:00 pm
Early Release
(Wednesday)
7:10 am - 12:30 pm

Upcoming Events

Spring Awards

Spring Awards

Date & Time: Wed, 04/24/2019 - 2:00pm to 3:30pm
Location: Horizon High School, 5321 E 136th Ave, Thornton, CO 80602, USA

04/24/2019 - 2:00pm
Apr 24

UNC Greeley Jazz Festival-TBD

UNC Greeley Jazz Festival-TBD

Date & Time: Thu, 04/25/2019 - 9:30am to Sat, 04/27/2019 - 10:30am
Location: University of Northern Colorado, 501 20th St, Greeley, CO 80639, USA

04/25/2019 - 9:30am
Apr 25

Mass Band Concert

Mass Band Concert

Date & Time: Tue, 04/30/2019 - 6:30pm to 9:00pm
Location: Horizon High School, 5321 E 136th Ave, Thornton, CO 80602, USA

04/30/2019 - 6:30pm
Apr 30

Choir Concert

Choir Concert

Date & Time: Fri, 05/03/2019 - 6:30pm to 8:30pm
Location: Horizon High School, 5321 E 136th Ave, Thornton, CO 80602, USA

05/03/2019 - 6:30pm
May 3

AP Testing

AP Testing

Date & Time:
Repeats every week every Monday and every Tuesday and every Wednesday and every Thursday and every Friday until Fri May 17 2019.
Mon, 05/06/2019 (All day)

05/06/2019 (All day)
May 6

Upcoming Sports

Track - Horizon JV Meet

Track - Horizon JV Meet

Date & Time: Fri, 04/19/2019 - 3:30pm to 9:00pm
Location: Horizon High School, 5321 E 136th Ave, Thornton, CO 80602, USA

04/19/2019 - 3:30pm
Apr 19

Track - GW Patriot Invitational

Track - GW Patriot Invitational

Date & Time: Sat, 04/20/2019 - 9:00am to 5:00pm
Location: All-City Stadium, 1500 S Franklin St, Denver, CO 80218, USA

04/20/2019 - 9:00am
Apr 20

Baseball JV & C @ Boulder

Baseball JV & C @ Boulder

Date & Time: Sat, 04/20/2019 - 11:00am to Sun, 04/21/2019 - 1:00am
Location: Scott Carpenter Park, 1505 30th St, Boulder, CO 80303, USA

JV @ Scott Carpenter
C @ Centennial Middle School

04/20/2019 - 11:00am
Apr 20

Baseball Varsity vs Boulder

Baseball Varsity vs Boulder

Date & Time: Sat, 04/20/2019 - 11:00am to 1:00pm
Location: Horizon High School, 5321 E 136th Ave, Thornton, CO 80602, USA

04/20/2019 - 11:00am
Apr 20

Boys' Swim vs Ft. Collins

Boys' Swim vs Ft. Collins

Date & Time: Mon, 04/22/2019 - 4:00pm to 7:00pm
Location: Veterans Memorial Aquatics Center, 5310 E 136th Ave, Thornton, CO 80241, USA

04/22/2019 - 4:00pm
Apr 22

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