- 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: 1,784 students
- Student-Teacher Ratio: 22:1
- Minority Enrollment: 58%
- 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
Top Rankings
Riverdale Ridge High School ranks among the top 20% of public schools in Colorado for:
Category
Attribute
Graduation Rate
School Overview
Riverdale Ridge High School's student population of 1,784 students has grown by 49% over five school years.
The teacher population of 82 teachers has grown by 43% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,784 students
Total Classroom Teachers
82 teachers
School Rankings
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 less than the diversity score at state average of 0.63. 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
22:1
15:1
American Indian
n/a
1%
Asian
6%
3%
Hispanic
45%
37%
Black
2%
5%
White
42%
49%
Hawaiian
n/a
n/a
Two or more races
5%
5%
All Ethnic Groups
Graduation Rate
94%
82%
Chronically Absent Students
(22-23)31.1%
33.6%
Eligible for Free Lunch
33%
39%
Eligible for Reduced Lunch
7%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CO Dept. of Education
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?
1,784 students attend Riverdale Ridge High School.
What is the racial composition of the student body?
45% of Riverdale Ridge High School students are Hispanic, 42% of students are White, 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 22:1, 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 Reviews
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