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A+

Clayton High

PublicHighGrades 9–12

#1 Mark Twain Circle, Clayton, MO 63105 · (314) 854-6600 · Part of Clayton School District

Clayton’s School Grade A+ better than 98% of Missouri school districts

Directions
Students
788
Students per teacher
10:1
Free or reduced lunch
8%
Setting
Suburb
Grades
9–12
The gist

What stands out about Clayton High

  • Its own letter, A+: reading and math results near the top of Missouri’s public schools
  • Math proficiency 47 pts above the state
  • Reading / language arts 27 pts above the state
  • Small classes: 10 students per teacher
  • Enrollment down 13.2% since 2020–21

On the path

Where Clayton kids come from and go next. The whole path →

6–8Wydown Middle604 students
9–12Clayton HighYou are here

Test scores

2020–21
Math proficiency82%
State average 35.3%
Reading / language arts72%
State average 45.2%

Its own letter, A+, places these results among Missouri’s 2,023 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

Location

Directions ↗

#1 Mark Twain Circle, Clayton

Students

Enrollment by grade
Grade 9173
Grade 10216
Grade 11189
Grade 12210
Enrollment over time
908’20
871’21
835’22
844’23
788’24

Down 13.2% since 2020–21.

Who goes here
White 59%Black 15%Asian 13%Two or more races 9%Hispanic 4%American Indian/Alaska Native <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Clayton High from Clayton families.

Other schools in Clayton School District

The district →
Meramec Elem.
Elementary · Grades K–5 · Clayton
A+
368 students12:1
Glenridge Elem.
Elementary · Grades K–5 · Clayton
A
321 students10:1
Ralph M. Captain Elem.
Elementary · Grades K–5 · Clayton
A+
286 students9:1
Wydown Middle
Middle · Grades 6–8 · Clayton
A+
604 students9:1

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Missouri’s other public schools; Clayton’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.