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SCHOOL COMMUNITY·ADAMS 12 FIVE STAR SCHOOLS·NCES 080690001491

Horizon High School

5321 EAST 136TH AVENUE, BRIGHTON, CO 80601 · (720) 972-4400 · Adams County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,966 STUDENTS
Enrollment
1,966
High
DISTRICT 1,250 · STATE 627
Student : Teacher
20.1:1
98 FTE teachers
DISTRICT 19.3:1 · STATE 16.9:1
Free / Reduced Lunch
33%
651 students
DISTRICT 57% · STATE 50%
Community
2
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
465
Grade 10
505
Grade 11
524
Grade 12
472
Student demographics
White
1,04153%
DISTRICT 39% · STATE 49%
Hispanic
69135%
DISTRICT 46% · STATE 37%
Black
251%
DISTRICT 2% · STATE 5%
Asian
975%
DISTRICT 7% · STATE 3%
Two+
1025%
DISTRICT 5% · STATE 5%
Native American
60%
DISTRICT 0% · STATE 1%
Pacific Islander
30%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,00751%
Female
95849%

Discussions

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BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of CO schools after controlling for student poverty
Actual proficiency
32.3%
composite math + reading, all grades
Predicted
46.6%
based on CO schools with similar FRL share
Beats by
-14.3pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
1,966
-71 (-3%) vs 2017
Student : Teacher
20.1:1
was 21.8:1
% White
53%
was 63%
% Hispanic
35%
was 27%
% Black
1%
was 2%
% Asian
5%
was 7%
Source: NCES Common Core of Data

About Horizon High School

As a big 9-12 campus in BRIGHTON, Colorado, Horizon High School hosts 1,966 students from grades 9 through 12, one of the schools within Adams 12 Five Star Schools. That puts it 214% bigger than the typical public school in Colorado, which averages around 627 students.

Adams 12 Five Star Schools comprises 54 schools with combined enrollment of 34,466 students; Horizon High School is among them.

Demographically, Horizon High School logs that the largest single group is White at 53%, but no single group is in the majority. Beyond that, the school reports 35% Hispanic, 5% multiracial, 5% Asian. That mix tracks the wider county fairly closely.

On the resource side, The school lists 98 full-time-equivalent teachers, for a student-teacher ratio near 20.1:1. Statewide, the average ratio sits near 16.9:1, putting Horizon High School higher than the state norm the norm. Around 33% of the student body qualifies for free or reduced-price meals, often used as a Title I proxy. That share is lower than Adams County's rate of about 62%.

On a demographically-adjusted basis, On a poverty-adjusted basis, Horizon High School sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 46.6%; actual is 32.3%, a gap of -14.3 points.

Zooming out to the county, census data for Adams County shows median household income runs about $94,571, about 29% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 7%. Across Adams County's 171 public schools (combined enrollment of about 87,938 students), Horizon High School is one campus in the mix.

Nearest neighbor: Bright Horizons Preschool, around 0.0 miles off. Within five miles, there are 8 other public schools. On composite proficiency, Horizon High School comes 7th of 8 in the immediate cluster, below the nearby-schools average of 39.9%.

Horizon High School operates from a residential location.

Trend over the last 7 years. Horizon High School's enrollment has shrank 3% since 2018, when it stood at 2,037 (now 1,966). Over the same period, the White share ticked down from 63% to 53%. The student-to-teacher ratio tightened from 21.8:1 in 2018 to 20.1:1 today.

On allk12, posts here usually surface around enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.

Adams County at a glance

View full county profile
Population
530,225
Census ACS
Median income
$94,571
Household, ACS
Bachelor's+
29%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
171
87,938 students

Quick facts

School name
Horizon High School
District
Adams 12 Five Star Schools
Address
5321 EAST 136TH AVENUE, BRIGHTON, CO 80601
Phone
(720) 972-4400
County
Adams County
Level
High
Grade range
09–12
Total enrollment
1,966
Teachers (FTE)
98
Student–teacher ratio
20.1:1
Free/Reduced lunch
651 (33%)
Locale
21-Suburb: Large
NCES ID
080690001491
Charter school
No
Virtual school
No

Related schools

Other schools in Adams 12 Five Star Schools
Other schools in BRIGHTON
Nearby schools

Frequently asked questions

About Horizon High School
How many students attend Horizon High School?
Horizon High School enrolls approximately 1,966 students in grades 09-12.
Is Horizon High School an elementary, middle, or high school?
Horizon High School is a high school covering grades 09-12.
How many teachers does Horizon High School have?
Horizon High School employs 98 FTE teachers, for a student-to-teacher ratio of 20.1:1.
What is the student diversity at Horizon High School?
Student demographics at Horizon High School are roughly 53% White, 35% Hispanic, 1% Black, 5% Asian, 5% Two or more.
What district is Horizon High School in?
Horizon High School is part of Adams 12 Five Star Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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