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

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Academic Pathways

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

Standardized Test Dates

Upcoming national, state, and school calendar dates that affect students at Clayton High.

National Tests

June 5, 2026

ACT

Registration deadline

June 6, 2026

SAT — National

Test date

June 8, 2026

ACT Photo Upload/Standby Deadline

Photo upload deadline

June 13, 2026

ACT — National

Test date

June 20, 2026 – July 4, 2026

SAT Score Release Date

Score release

June 23, 2026

ACT

Score release
+35 more national tests this school year
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1:1 Tutoring

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Practice Hub

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D
Principal
Dr. Dan Gutchewsky

Welcome to our school!

School Details
Teachers & Staff
Directory

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School Mission

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

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