Arapahoe High School is a public high school in Centennial, Colorado, United States. Located in a suburb of Denver, it is the flagship of the Littleton Public Schools District as the largest of three high schools, with an enrollment of 1,820 students.
Serving 1,781 students in grades 9-12, Arapahoe High School ranks in the top 5% of all schools in Colorado for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).
The percentage of students achieving proficiency in math is 65% (which is higher than the Colorado state average of 33%). The percentage of students achieving proficiency in reading/language arts is 82% (which is higher than the Colorado state average of 45%).
The student-teacher ratio of 23:1 is higher than the Colorado state level of 15:1.
Minority enrollment is 22% of the student body (majority Hispanic), which is lower than the Colorado state average of 50% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,781 students
- Student-Teacher Ratio: 23:1
- Minority Enrollment: 22%
- Graduation Rate: 95% (Top 20% in CO)
- Overall Testing Rank: Top 5%
- Math Proficiency: 65% (Top 5%)
- Reading Proficiency: 82% (Top 5%)
- Science Proficiency: 52% (Top 10%)
- Source: National Center for Education Statistics (NCES), CO Dept. of Education
Top Rankings
Arapahoe High School ranks among the top 20% of public schools in Colorado for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
Arapahoe High School's student population of 1,781 students has declined by 12% over five school years.
The teacher population of 79 teachers has declined by 13% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,781 students
Gender %
Total Classroom Teachers
79 teachers
Year Founded
1964
Colors
Black, Old gold
School Calendar
Last Day of School
Mon. May 25, 2026
School Rankings
Arapahoe High School ranks within the top 5% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).
The diversity score of Arapahoe High School is 0.38, which is less than the diversity score at state average of 0.62. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#39 out of 1748 schools
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
65%
33%
Reading/Language Arts Test Scores (% Proficient)
82%
45%
Science Test Scores (% Proficient)
(20-21)52%
29%
Student-Teacher Ratio
23:1
15:1
American Indian
n/a
1%
Asian
2%
3%
Hispanic
12%
36%
Black
2%
5%
White
78%
50%
Hawaiian
n/a
n/a
Two or more races
6%
5%
All Ethnic Groups
Graduation Rate
95%
82%
Eligible for Free Lunch
13%
39%
Eligible for Reduced Lunch
2%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CO Dept. of Education
School Notes
- School Mascot: Warriors
Frequently Asked Questions
What is Arapahoe High School's ranking?
Arapahoe High School is ranked #39 out of 1,748 schools, which ranks it among the top 5% of public schools in Colorado.
What schools are Arapahoe High School often compared to?
Arapahoe High Schoolis often viewed alongside schools like Cherry Creek High School, Heritage High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
65% of students have achieved math proficiency (compared to the 33% CO state average), while 82% of students have achieved reading proficiency (compared to the 45% CO state average).
What is the graduation rate of Arapahoe High School?
The graduation rate of Arapahoe High School is 95%, which is higher than the Colorado state average of 82%.
How many students attend Arapahoe High School?
1,781 students attend Arapahoe High School.
What is the racial composition of the student body?
78% of Arapahoe High School students are White, 12% of students are Hispanic, 6% of students are Two or more races, 2% of students are Asian, and 2% of students are Black.
What is the student-teacher ratio of Arapahoe High School?
Arapahoe High School has a student ration of 23:1, which is higher than the Colorado state average of 15:1.
What grades does Arapahoe High School offer ?
Arapahoe High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Arapahoe High School part of?
Arapahoe High School is part of Littleton School District No. 6 In The County Of Arapahoe.
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