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Alternative · Grades 6–12 · 44 students
Clayton High
#1 Mark Twain Circle, Clayton, MO 63105
Grades
9–12
High
Students
788
Enrolled 2024–25
Students per teacher
9.9 : 1
Full-time teachers
District
Clayton
St. Louis County
Schola Grade A · Excellent
Letter grade (A–F) · compared with 519 Missouri high schools · How we grade
Percentiles compare this school with other Missouri high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Clayton High
Clayton High is a public high school in Clayton, Missouri, serving grades 9–12. It is part of Clayton. The school is located in a large suburb in St. Louis County.
In the 2024–25 school year, 788 students were enrolled, with about 9.9 students for every full-time teacher. That ratio is smaller than the typical Missouri high school (11.9 students per teacher). Its Schola Grade is A (excellent), compared with 519 Missouri high schools.
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 788 students
- Students per teacher
- 9.9 to 1
- AP courses offered
- 35
- Charter school
- No
- Magnet school
- No
- Locale
- Suburb — Large
- School district
- Clayton
- County
- St. Louis County
- NCES school ID
- 290972000275
Schools near Clayton High
All 9 schools in Clayton →
Esther Miller Bais Yaakov
Private · Grades 9–12 · 36 students
University City Sr. High
Public · Grades 9–12 · 874 students
Brentwood High
Public · Grades 9–12 · 195 students
Maplewood-Richmond Hgts. High
Public · Grades 9–12 · 439 students
Ladue Horton Watkins High
Public · Grades 9–12 · 1,395 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.