Enrollment
286
Elementary
DISTRICT 325 · STATE 315
SCHOOL COMMUNITY·CLAYTON·NCES 290972000274
RALPH M. CAPTAIN ELEM.
6345 NORTHWOOD AVE, CLAYTON, MO 63105 · (314) 854-6100 · St. Louis County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL286 STUDENTS
A+
allk12 Grade
Scored higher than 96% of Missouri public elementary schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ABeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- A-Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Missouri public elementary schools
Student : Teacher
9.2:1
31 FTE teachers
DISTRICT 10.4:1 · STATE 12.4:1
Free / Reduced Lunch
4%
12 students
DISTRICT 8% · STATE 54%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 46 | 16% |
| Grade 1 | 54 | 19% |
| Grade 2 | 39 | 14% |
| Grade 3 | 48 | 17% |
| Grade 4 | 51 | 18% |
| Grade 5 | 48 | 17% |
This year's kindergarten class (46) is about the same size as its 5th grade class (48).
Student demographics
43%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 58% · STATE 52% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Based on grade levels within CLAYTON. Attendance zones can vary; confirm enrollment with the district.
Test scores
MAP 2024-25 . % Proficient + AdvancedEnglish Language Arts
74.0%
MO avg 44.9% . +3.5pp since 2021
Math
74.7%
MO avg 43.8% . +13.2pp since 2021
What this means: On the MAP, Missouri's statewide test, about 74 of every 100 students at this school read and write at grade level and about 75 of 100 do math at grade level. Across all Missouri schools, those numbers are about 45 and 44. Reading and writing scores are up about 4 points since 2021, while math scores are up about 13 points.
Performance levels, 2024-25
| Subject | Advanced | Proficient | Basic | Below Basic |
|---|---|---|---|---|
| Math | 48.9% | 25.8% | 19.7% | 5.4% |
Share of tested students at each MAP level. Each student counts in one level, so a row adds to about 100%.
MAP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 74.0% | 74.7% |
| 2023-24 | 75.4% | 72.6% |
| 2022-23 | 79.8% | 80.4% |
| 2021-22 | 70.5% | 61.5% |
% Proficient + Advanced, all students and all tested grades.
Source: MAP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of MO schools after controlling for student poverty
Actual proficiency
75.3%
composite math + reading, all grades
Predicted
58.3%
based on MO schools with similar FRL share
Beats by
+16.9pp
above demographic expectation
What this means: About 75% of students here test proficient in math and reading, well above the roughly 58% typical for Missouri schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 17 points, placing it in Missouri's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like RALPH M. CAPTAIN ELEM.
RALPH M. CAPTAIN ELEM.'s state test result (75.3% proficient) is higher than 4 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| RALPH M. CAPTAIN ELEM. this school | 286 | 4.2% | 75.3% |
| FAIRWAY ELEM. WILDWOOD | 346 | 7.2% | 63.3% |
| STANTON ELEM. FENTON | 303 | 10.6% | 57.3% |
| MCGRATH ELEM. BRENTWOOD | 236 | 11.4% | 69.7% |
| EARLY CHILDHOOD CENTER St. Peters | 307 | 1.0% | N/A |
| BABLER ELEM. GLENCOE | 408 | 8.8% | 66.0% |
Matched among Missouri elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where RALPH M. CAPTAIN ELEM. ranks
Among elementary schools| Measure | This school | In Missouri | In St. Louis County |
|---|---|---|---|
| State test proficiency ranked highest first | 75.3% | #21 of 1,002 | #8 of 133 |
| Math proficiency ranked highest first | 74.7% | #24 of 1,019 ▲ 6 | #8 of 138 ▲ 1 |
| Reading proficiency ranked highest first | 74.0% | #26 of 1,018 ▼ 11 | #14 of 138 ▼ 6 |
| 3-year test score change ranked biggest gain first | +8.3pp | #150 of 943 | #22 of 130 |
| Enrollment ranked largest first | 286 | #733 of 1,294 | #126 of 165 |
| Students per teacher ranked fewest first | 9.2:1 | #25 of 950 | #3 of 149 |
| Diversity index ranked most diverse first | 42.7% | #415 of 953 | #68 of 151 |
| Free and reduced lunch ranked highest share first | 4.2% | #1,159 of 1,165 | #149 of 154 |
| Enrollment change since 2017-18 ranked steepest decline first | -21.9% | #164 of 684 | #18 of 103 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
286
-38 (-12%) vs 2020
-15% since 1990-91, when it was 335
Student : Teacher
9.2:1
was 11.2:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 286 | 31 | 9.2:1 | 4% (12) |
| 2023-24 | 287 | 31.5 | 9.1:1 | 6% (16) |
| 2022-23 | 283 | 30.5 | 9.3:1 | 11% (30) |
| 2020-21 | 324 | 29 | 11.2:1 | 14% (46) |
| 2017-18 | 366 | 31 | 11.8:1 | 16% (58) |
| 2015-16 | 357 | 30 | 11.9:1 | 15% (54) |
| 2010-11 | 332 | 30 | 11.1:1 | 7% (24) |
| 2000-01 | 296 | 25 | 11.8:1 | 26% (78) |
| 1990-91 | 335 | 24 | 14.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for RALPH M. CAPTAIN ELEM..
Since 2017-18: students down 22% (366 to 286); teachers unchanged (31 to 31).
About RALPH M. CAPTAIN ELEM.
RALPH M. CAPTAIN ELEM., a medium-sized elementary school, is located in CLAYTON, Missouri. Its 286 students are spread across kindergarten through 5.
CLAYTON (5 schools, 2,367 students) runs RALPH M. CAPTAIN ELEM..
RALPH M. CAPTAIN ELEM. is 74% White by enrollment. Other students are 9% multiracial, 8% Black, 5% Asian, and 3% Hispanic. By comparison, St. Louis County residents are about 62% White. The school's diversity index is 43%, meaning two students picked at random have a 43% chance of belonging to different racial or ethnic groups.
The school reports 31 full-time-equivalent teachers, which works out to about 9.2 students per teacher. That is 3.2 students per teacher below the 12.4:1 average for elementary schools in Missouri. Free or reduced-price lunch eligibility covers 4% of students. That is 39 points below the 43% average for public schools in St. Louis County.
allk12 grades RALPH M. CAPTAIN ELEM. an A+. The grade compares the school only with Missouri public elementary schools, because each state gives its own test.
On BeatsExpectations, which compares test results with what a school's student poverty level would predict, RALPH M. CAPTAIN ELEM. ranks in the top 10% in Missouri. Its average proficiency rate on state tests is 75.3%, against a prediction of 58.3%.
According to the American Community Survey, in St. Louis County, the median household income is $82,936, 47% of adults hold a bachelor's degree or higher, and about 7% of people live in poverty. RALPH M. CAPTAIN ELEM. is one of 275 public schools in the county.
Nearby, WYDOWN MIDDLE is less than a tenth of a mile away. Within five miles of RALPH M. CAPTAIN ELEM., there are at least 8 other public schools. The average proficiency across nearby scored schools is 52.9%; RALPH M. CAPTAIN ELEM.'s is 75.3%, ranking 1st of 7.
Its location is classified as Suburb: Large by the National Center for Education Statistics.
Compared with 2020-21, the school had 38 fewer students in 2024-25. In 2020-21, the student-to-teacher ratio was 11.2:1; by 2024-25 it was 9.2:1.
Parents and students can post about sports tryouts, band and choir, and theater at RALPH M. CAPTAIN ELEM.. Alumni can share how the school prepared them.
St. Louis County at a glance
View full county profilePopulation
995,569
Census ACS
Median income
$82,936
Household, ACS
Bachelor's+
47%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
275
134,601 students
Quick facts
Related schools
Other schools in CLAYTON
- CLAYTON HIGHHigh · 788 students
- WYDOWN MIDDLEMiddle · 604 students
- MERAMEC ELEM.Elementary · 368 students
- GLENRIDGE ELEM.Elementary · 321 students
- FAMILY CTR.Elementary
Other schools in CLAYTON
- CLAYTON HIGHHigh · 788 students
- WYDOWN MIDDLEMiddle · 604 students
- MERAMEC ELEM.Elementary · 368 students
- GLENRIDGE ELEM.Elementary · 321 students
- JUVENILE DETENTION CTR.High · 44 students
- FAMILY CTR.Elementary
Nearby schools
- WYDOWN MIDDLE0.0 mi · 604
- GLENRIDGE ELEM.0.9 mi · 321
- DEWEY SCH.-INTERNAT'L. STUDIES1.0 mi · 337
- FLYNN PARK ELEM.1.0 mi · 323
- JULIA GOLDSTEIN EARLY CHILD.1.2 mi · 123
- MRH ELEMENTARY1.4 mi · 436
Frequently asked questions
About RALPH M. CAPTAIN ELEM.What is the total enrollment at RALPH M. CAPTAIN ELEM.?
RALPH M. CAPTAIN ELEM. enrolls approximately 286 students in grades KG-05.
What age range does RALPH M. CAPTAIN ELEM. serve?
RALPH M. CAPTAIN ELEM. serves students from grade KG through grade 05.
How many teachers does RALPH M. CAPTAIN ELEM. have?
RALPH M. CAPTAIN ELEM. employs 31 FTE teachers, for a student-to-teacher ratio of 9.2:1.
What is the student diversity at RALPH M. CAPTAIN ELEM.?
Student demographics at RALPH M. CAPTAIN ELEM. are roughly 74% White, 3% Hispanic, 8% Black, 5% Asian, 9% Two or more.
What district is RALPH M. CAPTAIN ELEM. in?
RALPH M. CAPTAIN ELEM. is part of CLAYTON.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.