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SCHOOL COMMUNITY·CLAYTON·NCES 290972000275

CLAYTON HIGH

#1 MARK TWAIN CIRCLE, CLAYTON, MO 63105 · (314) 854-6600 · St. Louis County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL788 STUDENTS
Enrollment
788
High
DISTRICT 473 · STATE 501
Student : Teacher
9.9:1
80 FTE teachers
DISTRICT 10.1:1 · STATE 12.2:1
Free / Reduced Lunch
8%
63 students
DISTRICT 8% · STATE 54%
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 917322%
Grade 1021627%
Grade 1118924%
Grade 1221027%
Student demographics
61%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 58% · STATE 52% · US 70%
White
46259%
DISTRICT 61% · STATE 67% · US 43%
Hispanic
344%
DISTRICT 4% · STATE 9% · US 30%
Black
11815%
DISTRICT 13% · STATE 15% · US 15%
Asian
10013%
DISTRICT 12% · STATE 2% · US 6%
Two+
739%
DISTRICT 9% · STATE 6% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
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
40451%
Female
38449%

School pathway

Feeds from
WYDOWN MIDDLE0608
Based on grade levels within CLAYTON. Attendance zones can vary; confirm enrollment with the district.

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BeatsExpectations

Demographically-adjusted score · methodology
Tier
OUTPERFORMING
Top 10% of MO schools after controlling for student poverty
Actual proficiency
73.6%
composite math + reading, all grades
Predicted
51.1%
based on MO schools with similar FRL share
Beats by
+22.5pp
above demographic expectation

What this means: About 74% of students here test proficient in math and reading, well above the roughly 51% typical for Missouri schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 23 points, placing it in Missouri's top 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Where CLAYTON HIGH ranks

Among high schools
MeasureThis schoolIn MissouriIn St. Louis County
State test proficiency
ranked highest first
73.6%#50 of 440#12 of 33
Enrollment
ranked largest first
788#118 of 561#26 of 45
Students per teacher
ranked fewest first
9.9:1#10 of 343#1 of 34
Diversity index
ranked most diverse first
60.7%#30 of 343#8 of 34
Enrollment change since 2017-18
ranked steepest decline first
-10.1%#71 of 187#9 of 21
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.

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
788
-89 (-10%) vs 2017
Student : Teacher
9.9:1
was 11.3:1
% White
59%
was 60%
% Hispanic
4%
was 4%
% Black
15%
was 20%
% Asian
13%
was 13%
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree or reduced lunch
2024-2578879.89.9:18% (63)
2023-2484477.710.9:18% (64)
2022-2383582.610.1:19% (73)
2017-1887777.411.3:115% (130)
Source: NCES Common Core of Data. Rows are the federal collections on file for CLAYTON HIGH.

About CLAYTON HIGH

CLAYTON HIGH is a large high school in CLAYTON, Missouri, administered by CLAYTON. Its enrollment is 788 students, spread over grades 9 through 12. Across high schools in Missouri, the average enrollment is about 501.

CLAYTON (5 schools, 2,367 students) runs CLAYTON HIGH.

About 59% of the student body at CLAYTON HIGH is White. The remaining students are 15% Black, 13% Asian, 9% multiracial, and 4% Hispanic. St. Louis County residents are about 62% White, a similar share. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 61%.

CLAYTON HIGH has 79.8 full-time-equivalent teachers on staff and a student-to-teacher ratio of 9.9:1. The school's 9.9:1 compares with an average of 12.2:1 for high schools in Missouri. The school has 8% of students eligible for free or reduced-price lunch. That is lower than the 43% average for public schools in St. Louis County.

When test results are adjusted for free or reduced-price lunch eligibility, CLAYTON HIGH ranks in the top 10% of Missouri schools. It scores 73.6%; the prediction is 51.1%.

Looking at the county, St. Louis County, the median household earns about $82,936 a year, 47% of adults hold a bachelor's degree or higher, and about 7% of people live in poverty. St. Louis County has 275 public schools with about 134,601 students, including CLAYTON HIGH.

CLAYTON HIGH's closest public school neighbor is JUVENILE DETENTION CTR., about 0.4 miles away. The five-mile area around CLAYTON HIGH holds at least 8 other public schools. CLAYTON HIGH's average proficiency of 73.6% compares with 64.3% for its nearest scored neighbors.

Under the NCES locale system, CLAYTON HIGH is Suburb: Large.

Between 2017-18 and 2024-25, CLAYTON HIGH had a net loss of 89 students, or 10%. The Black share of enrollment dropped from 20% to 15% over the same period. The ratio of students to teachers went from 11.3:1 to 9.9:1 over the same years.

People can post here about open houses, carpools, and field trips and other school topics. Parents, students, alumni, and staff are welcome to post.

St. Louis County at a glance

View full county profile
Population
995,569
Census ACS
Median income
$82,936
Household, ACS
Bachelor's+
47%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
275
134,601 students

Quick facts

School name
CLAYTON HIGH
District
CLAYTON
Address
#1 MARK TWAIN CIRCLE, CLAYTON, MO 63105
Phone
(314) 854-6600
County
St. Louis County
Level
High
Grade range
09–12
Total enrollment
788
Teachers (FTE)
80
Student–teacher ratio
9.9:1
Free/Reduced lunch
63 (8%)
Locale
21-Suburb: Large
NCES ID
290972000275
Charter school
No
Virtual school
No

Related schools

Other schools in CLAYTON
Other schools in CLAYTON
Nearby schools

Frequently asked questions

About CLAYTON HIGH
How many students attend CLAYTON HIGH?
CLAYTON HIGH enrolls approximately 788 students in grades 09-12.
What grades does CLAYTON HIGH serve?
CLAYTON HIGH serves grades 09-12.
What is the student-teacher ratio at CLAYTON HIGH?
The student-to-teacher ratio at CLAYTON HIGH is approximately 9.9:1 (80 FTE teachers).
What is the racial breakdown of students at CLAYTON HIGH?
At CLAYTON HIGH, the student body is approximately 59% White, 4% Hispanic, 15% Black, 13% Asian, 9% Two or more.
Is CLAYTON HIGH public or private?
CLAYTON HIGH is a public K-12 school, overseen by CLAYTON.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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