Clayton High

Clayton, Missouri

835 students

High School, Grades 9–12

#4

Best ACT in Missouri High Schools

835

Students

10.1:1

S:T Ratio

School Snapshot
Key metrics at a glance
Avg SAT Score

1,300

A

out of 1600
Excellent
Avg ACT Score

26

A-

out of 36
Good
AP Courses

25

A+

courses offered
Excellent
AP Enrollment

37%

C+

of students
Excellent
Student-Teacher Ratio

10:1

A

students per teacher
Excellent
Academic Grades

Select a grade level to explore courses and resources

Academic Pathways

Explore 209 courses in the 2025-26 catalog for Clayton High

Varsity Tutors

Unlock Academic Success

Personalized learning support for Clayton High learners
SAT Prep

Practice tests, flashcards, and AI-powered study tools

ACT Prep

Master all four sections with targeted practice

Study Coach

Get instant help with homework and practice problems 24/7

1:1 Tutoring

Match with expert tutors in Clayton

Live Classes

Join interactive group sessions with expert instructors

Practice Hub

Thousands of flashcards and learning resources

D
Principal
Dr. Dan Gutchewsky

Welcome to our school!

School Details
Address

#1 Mark Twain Circle, Clayton, MO 63105

Phone

(314)854-6600

Website

Visit Website

District

Clayton

Teachers & Staff
Directory

Find contact info, departments, and classroom details

Academic Calendar
2025-2026

Important dates, holidays, and school events

School Mission

We inspire each student to love learning and embrace challenge within a rich and rigorous academic culture.

Need Academic Help?

Get matched with expert tutors for any subject

Find a Tutor