A
Horizon High School
PublicHighGrades 9–12
5321 East 136th Avenue, Brighton, CO 80601 · (720) 972-4400 · Part of Adams 12 Five Star Schools
Students
1,966
Students per teacher
20:1
Free or reduced lunch
33%
Setting
Suburb
Grades
9–12
What stands out about Horizon High School
- School Grade A: near the top of Colorado’s public schools
- Math proficiency 15 pts above the state
- Reading / language arts 18 pts above the state
- Larger classes: 20:1 students per teacher
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency45%
State average 30.5%
Reading / language arts65%
State average 47%
Location
Directions ↗
5321 East 136th Avenue, Brighton
Students
Enrollment by grade
Grade 9465
Grade 10505
Grade 11524
Grade 12472
Enrollment over time
2,067’20
1,999’21
2,026’22
1,981’23
1,966’24
Down 4.9% since 2020.
Who goes here
White 53%Hispanic 35%Two or more races 5%Asian 5%Black 1%American Indian/Alaska Native <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Horizon High School.
Other schools in Adams 12 Five Star Schools
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.