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SCHOOL COMMUNITY·OKLAHOMA CITY·NCES 402277001885

Classen HS of Advanced Studies

1901 North Ellison Avenue, Oklahoma City, OK 73106 · (405) 587-5400 · Oklahoma County
GRADES 09–12HIGH11-CITYTITLE IREGULAR SCHOOL810 STUDENTS
·
allk12 Grade
Not graded

This school has no state test results for 2023-24 or 2024-25 to grade, which is common for schools that end before third grade. How grades work

Enrollment
810
High
DISTRICT 938 · STATE 443
Student : Teacher
17.6:1
46 FTE teachers
DISTRICT 15.6:1 · STATE 15.4:1
Free / Reduced Lunch
46%
369 students
DISTRICT 91% · STATE 68%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 924430%
Grade 1023629%
Grade 1117722%
Grade 1215319%
Student demographics
78%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 61% · STATE 73% · US 70%
White
26533%
DISTRICT 11% · STATE 43% · US 43%
Hispanic
19524%
DISTRICT 57% · STATE 21% · US 30%
Black
14618%
DISTRICT 19% · STATE 8% · US 15%
Asian
9111%
DISTRICT 2% · STATE 2% · US 6%
Two+
9812%
DISTRICT 7% · STATE 14% · US 5%
Native American
121%
DISTRICT 2% · STATE 11% · US 1%
Pacific Islander
30%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
31339%
Female
49761%

Discussions

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Schools most like Classen HS of Advanced Studies

SchoolStudentsLow-incomeProficient
Classen HS of Advanced Studies this school81045.6%N/A
Westmoore High School
Oklahoma City
2,60743.5%N/A
Santa Fe High School
Edmond
2,77439.4%N/A
Jenks High School
Jenks
3,65543.1%N/A
Putnam City North High School
Oklahoma City
1,56755.3%N/A
Southmoore High School
Moore
2,05544.6%N/A
Matched among Oklahoma high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Classen HS of Advanced Studies ranks

Among high schools
MeasureThis schoolIn OklahomaIn Oklahoma County
Enrollment
ranked largest first
810#63 of 467#17 of 35
Students per teacher
ranked fewest first
17.6:1#142 of 220#15 of 33
Diversity index
ranked most diverse first
77.5%#6 of 220#1 of 33
Free and reduced lunch
ranked highest share first
45.6%#267 of 323#24 of 33
Enrollment change since 2017-18
ranked fastest growth first
+53.1%#7 of 120#5 of 22
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
810
+125 (+18%) vs 2020
+41% since 2000-01, when it was 573
Student : Teacher
17.6:1
was 14.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-258104617.6:146% (369)
2023-2481047.117.2:151% (410)
2022-2374346.615.9:150% (369)
2020-216854714.6:146% (317)
2017-1852938.113.9:117% (89)
2015-165014311.7:128% (142)
2010-115473714.8:124% (132)
2000-015734014.3:143% (245)
Source: NCES Common Core of Data. Rows are the federal collections on file for Classen HS of Advanced Studies.

Since 2017-18: students up 53% (529 to 810); teachers up 21% (38.1 to 46).

About Classen HS of Advanced Studies

At 1901 North Ellison Avenue in Oklahoma City, Oklahoma, Classen HS of Advanced Studies operates as a large high school. School enrollment was 810 students in 2024-25, in grades 9 through 12. For comparison, high schools in Oklahoma average about 443 students.

Classen HS of Advanced Studies reports to OKLAHOMA CITY, which has 58 schools and 32,864 students.

White students form the largest group at Classen HS of Advanced Studies, 33% of enrollment. The remaining shares are 24% Hispanic, 18% Black, 12% multiracial, and 11% Asian. Census estimates put the White share of Oklahoma County's population at about 57%. The chance that two students picked at random at Classen HS of Advanced Studies belong to different racial or ethnic groups, known as the diversity index, is 78%.

At Classen HS of Advanced Studies, 46 full-time-equivalent teachers work with students, a ratio of about 17.6:1. That ratio is over the 15.4:1 average for high schools in Oklahoma. Students eligible for free or reduced-price lunch make up 46% of enrollment. That is 21 points below the 67% average for public schools in Oklahoma County.

Classen HS of Advanced Studies is located in Oklahoma County, where median household income is about $66,679, 36% of adults hold a bachelor's degree or higher, and about 12% of people live in poverty. Federal data list 225 public schools in Oklahoma County, with a combined enrollment of about 161,569.

Thelma R. Parks Elementary School is located about 0.5 miles from Classen HS of Advanced Studies. Other public schools within five miles: at least 8.

The NCES locale for Classen HS of Advanced Studies is City: Large, which covers schools inside a principal city with a population of 250,000 or more.

Classen HS of Advanced Studies saw enrollment rise 18% between 2020-21 and 2024-25. The ratio of students to teachers went from 14.6:1 to 17.6:1 over the same years.

The Classen HS of Advanced Studies community page is open for posts about school events, clubs, and volunteer needs. Posting is open to anyone connected to the school.

Oklahoma County at a glance

View full county profile
Population
806,199
Census ACS
Median income
$66,679
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
12%
Below federal line
Schools in county
225
161,569 students

Quick facts

School name
Classen HS of Advanced Studies
District
OKLAHOMA CITY
Address
1901 North Ellison Avenue, Oklahoma City, OK 73106
Phone
(405) 587-5400
County
Oklahoma County
Level
High
Grade range
09–12
Total enrollment
810
Teachers (FTE)
46
Student–teacher ratio
17.6:1
Free and reduced lunch
369 (46%)
Locale
11-City: Large
NCES ID
402277001885
Charter school
No
Virtual school
No

Related schools

Other schools in OKLAHOMA CITY
Other schools in Oklahoma City
Nearby schools

Frequently asked questions

About Classen HS of Advanced Studies
How large is Classen HS of Advanced Studies?
Classen HS of Advanced Studies enrolls approximately 810 students in grades 09-12.
What grades does Classen HS of Advanced Studies serve?
Classen HS of Advanced Studies serves grades 09-12.
How many teachers does Classen HS of Advanced Studies have?
Classen HS of Advanced Studies employs 46 FTE teachers, for a student-to-teacher ratio of 17.6:1.
What is the student diversity at Classen HS of Advanced Studies?
Student demographics at Classen HS of Advanced Studies are roughly 33% White, 24% Hispanic, 18% Black, 11% Asian, 12% Two or more.
Who oversees Classen HS of Advanced Studies?
Classen HS of Advanced Studies is overseen by OKLAHOMA CITY in Oklahoma County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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