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A+

Ralph M. Captain Elem.

PublicElementaryGrades K–5

6345 Northwood Ave, Clayton, MO 63105 · (314) 854-6100 · Part of Clayton School District

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

Directions
Students
286
Students per teacher
9:1
Free or reduced lunch
4%
Setting
Suburb
Grades
K–5
The gist

What stands out about Ralph M. Captain Elem.

  • Its own letter, A+: reading and math results near the top of Missouri’s public schools
  • Math proficiency 27 pts above the state
  • Reading / language arts 27 pts above the state
  • Small classes: 9 students per teacher
  • Enrollment down 11.7% since 2020–21
  • Next stop for Clayton kids: Wydown Middle

On the path

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

K–5Ralph M. Captain Elem.You are here
6–8Wydown Middle604 students

Test scores

2020–21
Math proficiency62%
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 ↗

6345 Northwood Ave, Clayton

Students

Enrollment by grade
Kindergarten46
Grade 154
Grade 239
Grade 348
Grade 451
Grade 548
Enrollment over time
324’20
296’21
283’22
287’23
286’24

Down 11.7% since 2020–21.

Who goes here
White 74%Two or more races 9%Black 8%Asian 5%Hispanic 3%

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

Parents talk

Questions and answers about Ralph M. Captain Elem. 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
Wydown Middle
Middle · Grades 6–8 · Clayton
A+
604 students9:1
Clayton High
High · Grades 9–12 · Clayton
A+
788 students10:1

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.