- Riverdale Ridge High School in Brighton, CO, serves 1,636 students across grades 9–12 as part of School District 27j.
- The student body reflects the diversity of Adams County with enrollment including Hispanic (703), White (713), Asian/Pacific Islander (106), and students from other backgrounds.
- The school offers a balanced gender distribution, with 50% male and 50% female students.
- A total of 645 students at this suburban high school qualify for free or reduced-price lunch, indicating a range of family backgrounds within the community.
- Riverdale Ridge High School is often compared with other Brighton, CO high schools such as Horizon High School, Eagle Ridge Academy, and Brighton High School.
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,636 students
- Student-Teacher Ratio: 21:1
- Minority Enrollment: 56%
- Graduation Rate: 94% (Top 20% in CO)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 21% (Btm 50%)
- Reading Proficiency: 44% (Top 50%)
- Science Proficiency: 16% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CO Dept. of Education
<Â鶹¹û¶³´«Ã½ class="so-dt-title" id="top-rankings">Top Rankings
Riverdale Ridge High School ranks among the top 20% of public schools in Colorado for:
Category
Attribute
Graduation Rate
<Â鶹¹û¶³´«Ã½ class='so-dt-title' id="overview">School Overview <Â鶹¹û¶³´«Ã½ class='so-dt-title' id="school-rankings">School Rankings
Riverdale Ridge High School's student population of 1,636 students has grown by 36% over five school years.
The teacher population of 78 teachers has grown by 36% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,636 students
Gender %
Total Classroom Teachers
78 teachers
Riverdale Ridge High School ranks within the bottom 50% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).
The diversity score of Riverdale Ridge High School is 0.62, which is equal to the diversity score at state average of 0.62. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1019 out of 1748 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
21%
33%
Reading/Language Arts Test Scores (% Proficient)
44%
45%
Science Test Scores (% Proficient)
(20-21)16%
29%
Student-Teacher Ratio
21:1
15:1
American Indian
n/a
1%
Asian
6%
3%
Hispanic
43%
36%
Black
2%
5%
White
44%
50%
Hawaiian
n/a
n/a
Two or more races
5%
5%
All Ethnic Groups
Graduation Rate
94%
82%
Eligible for Free Lunch
32%
39%
Eligible for Reduced Lunch
8%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CO Dept. of Education
<Â鶹¹û¶³´«Ã½ class='so-dt-title' id='faq'>Frequently Asked Questions What is Riverdale Ridge High School's ranking?
Riverdale Ridge High School is ranked #1019 out of 1,748 schools, which ranks it among the bottom 50% of public schools in Colorado.
What schools are Riverdale Ridge High School often compared to?
Riverdale Ridge High Schoolis often viewed alongside schools like Horizon High School, Eagle Ridge Academy by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
21% of students have achieved math proficiency (compared to the 33% CO state average), while 44% of students have achieved reading proficiency (compared to the 45% CO state average).
What is the graduation rate of Riverdale Ridge High School?
The graduation rate of Riverdale Ridge High School is 94%, which is higher than the Colorado state average of 82%.
How many students attend Riverdale Ridge High School?
1,636 students attend Riverdale Ridge High School.
What is the racial composition of the student body?
44% of Riverdale Ridge High School students are White, 43% of students are Hispanic, 6% of students are Asian, 5% of students are Two or more races, and 2% of students are Black.
What is the student-teacher ratio of Riverdale Ridge High School?
Riverdale Ridge High School has a student ration of 21:1, which is higher than the Colorado state average of 15:1.
What grades does Riverdale Ridge High School offer ?
Riverdale Ridge High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Riverdale Ridge High School part of?
Riverdale Ridge High School is part of School District 27j.
School ReviewsReview Riverdale Ridge High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
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Review Riverdale Ridge High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
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