Classen School of Advanced Studies, often referred to as Classen SAS, CSAS or simply Classen, is a public speciality school serving students in grades 9–12 in Oklahoma City, Oklahoma.
Serving 810 students in grades 9-12, Classen High School Of Advanced Studies ranks in the top 20% of all schools in Oklahoma for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 30-34% (which is higher than the Oklahoma state average of 25%). The percentage of students achieving proficiency in reading/language arts is 60-64% (which is higher than the Oklahoma state average of 27%).
The student:teacher ratio of 17:1 is higher than the Oklahoma state level of 15:1.
Minority enrollment is 70% of the student body (majority Hispanic and Black), which is higher than the Oklahoma state average of 56% (majority Hispanic and American Indian).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 810 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 70%
- Graduation Rate: ≥95% (Top 5% in OK)
- Overall Testing Rank: Top 20%
- Math Proficiency: 30-34% (Top 30%)
- Reading Proficiency: 60-64% (Top 5%)
- Science Proficiency: 45-49% (Top 30%)
- Source: National Center for Education Statistics (NCES), OK Dept. of Education
Top Rankings
Classen High School Of Advanced Studies ranks among the top 20% of public schools in Oklahoma for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
Graduation Rate
Diversity
School Overview
Classen High School Of Advanced Studies's student population of 810 students has grown by 47% over five school years.
The teacher population of 47 teachers has grown by 46% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
810 students
Gender %
Total Classroom Teachers
47 teachers
Year Founded
1919
School Rankings
Classen High School Of Advanced Studies ranks within the top 20% of all 1,680 schools in Oklahoma (based off of combined math and reading proficiency testing data).
The diversity score of Classen High School Of Advanced Studies is 0.79, which is more than the diversity score at state average of 0.73. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#188 out of 1680 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
30-34%
25%
Reading/Language Arts Test Scores (% Proficient)
60-64%
27%
Science Test Scores (% Proficient)
45-49%
31%
Student : Teacher Ratio
17:1
15:1
American Indian
2%
11%
Asian
12%
2%
Hispanic
23%
20%
Black
21%
8%
White
30%
44%
Hawaiian
1%
1%
Two or more races
11%
14%
All Ethnic Groups
Graduation Rate
(20-21)≥95%
78%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
14%
48%
Eligible for Reduced Lunch
4%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), OK Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Classen High School Of Advanced Studies's ranking?
Classen High School Of Advanced Studies is ranked #188 out of 1,680 schools, which ranks it among the top 20% of public schools in Oklahoma.
What schools are Classen High School Of Advanced Studies often compared to?
Classen High School Of Advanced Studiesis often viewed alongside schools like Dove Science Academy High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
30-34% of students have achieved math proficiency (compared to the 25% OK state average), while 60-64% of students have achieved reading proficiency (compared to the 27% OK state average).
What is the graduation rate of Classen High School Of Advanced Studies?
The graduation rate of Classen High School Of Advanced Studies is 95%, which is higher than the Oklahoma state average of 78%.
How many students attend Classen High School Of Advanced Studies?
810 students attend Classen High School Of Advanced Studies.
What is the racial composition of the student body?
30% of Classen High School Of Advanced Studies students are White, 23% of students are Hispanic, 21% of students are Black, 12% of students are Asian, 11% of students are Two or more races, 2% of students are American Indian, and 1% of students are Hawaiian.
What is the student:teacher ratio of Classen High School Of Advanced Studies?
Classen High School Of Advanced Studies has a student ration of 17:1, which is higher than the Oklahoma state average of 15:1.
What grades does Classen High School Of Advanced Studies offer ?
Classen High School Of Advanced Studies offers enrollment in grades 9-12 (No virtual instruction).
What school district is Classen High School Of Advanced Studies part of?
Classen High School Of Advanced Studies is part of Oklahoma City School District.
In what neighborhood is Classen High School Of Advanced Studies located?
Classen High School Of Advanced Studies is located in the Central Oklahoma City neighborhood of Oklahoma City, OK. There are 83 other public schools located in Central Oklahoma City.
School Reviews
Review Classen High School Of Advanced Studies. 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
Recent Articles
Parents’ Guide to Special Education
Special education law is not easy to decipher, with several regulations that govern special education services for disabled students. In this article, learn about the core components of the laws, rights, and individual education plans that can help create the best public school environment for your child.
Surveillance Cameras: Violation of Rights or Improved Security?
A school district in Virginia has given the green light to schools that want to install surveillance cameras in common areas like cafeterias and hallways. We’ll look at whether this is a violation of student privacy or the best way to keep order in schools.
Teachers in 19 States Allowed to Physically Punish Students
As of 2014, nineteen states still allow corporal punishment – spanking and paddling the most common choices – in their public schools. However, some argue that not only are these punishments physically harmful, they also are disproportionately administered to students of color. As a result, House democrats have taken up the issue in a new bill that would ban all forms of corporal punishment nationwide.
