Enrollment
258
Elementary
DISTRICT 383 · STATE 315
SCHOOL COMMUNITY·MEHLVILLE R-IX·NCES 292067003320
MOSAIC ELEMENTARY
3701 Will Ave., St. Louis, MO 63125 · (314) 467-7900 · St. Louis County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL258 STUDENTS
Student : Teacher
14.5:1
18 FTE teachers
DISTRICT 13.9:1 · STATE 12.4:1
Free / Reduced Lunch
10%
25 students
DISTRICT 30% · 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 | 41 | 16% |
| Grade 1 | 45 | 17% |
| Grade 2 | 46 | 18% |
| Grade 3 | 46 | 18% |
| Grade 4 | 41 | 16% |
| Grade 5 | 39 | 15% |
Student demographics
28%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 37% · 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
Test scores
MO DVT (Growth) 2024-25 . Growth Percentile vs PeersEnglish Language Arts
84.8%
MO avg 49.5% . +35.3pp since 2023
Math
58.1%
MO avg 48.7% . +16.6pp since 2023
What this means: On the MO DVT (Growth), Missouri's statewide test, about 85 of every 100 students at this school read and write at grade level and about 58 of 100 do math at grade level. Across all Missouri schools, those numbers are about 50 and 49. Reading and writing scores are up about 35 points since 2023, while math scores are up about 17 points.
MO DVT (Growth) results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 84.8% | 58.1% |
| 2023-24 | 49.5% | 41.5% |
Growth Percentile vs Peers, all students and all tested grades.
Source: MO DVT (Growth). All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
50.9%
composite math + reading, all grades
Predicted
51.1%
based on MO schools with similar FRL share
Beats by
-0.2pp
below demographic expectation
What this means: About 51% of students here test proficient in math and reading, compared with the roughly 51% typical for Missouri schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Missouri's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Where MOSAIC ELEMENTARY ranks
Among elementary schools| Measure | This school | In Missouri | In St. Louis County |
|---|---|---|---|
| State test proficiency ranked highest first | 50.9% | #488 of 968 | #63 of 131 |
| Math proficiency ranked highest first | 58.1% | #366 of 974 | #53 of 136 |
| Reading proficiency ranked highest first | 84.8% | #66 of 974 | #9 of 136 |
| Enrollment ranked largest first | 258 | #805 of 1,294 | #136 of 165 |
| Students per teacher ranked fewest first | 14.5:1 | #753 of 950 | #89 of 149 |
| Diversity index ranked most diverse first | 27.9% | #573 of 953 | #102 of 151 |
| Free and reduced lunch ranked highest share first | 9.7% | #1,119 of 1,165 | #120 of 154 |
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.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
258
+13 (+5%) vs 2020
Student : Teacher
14.5:1
was 14.4:1
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 | 258 | 17.8 | 14.5:1 | 10% (25) |
| 2023-24 | 251 | 17 | 14.8:1 | 7% (18) |
| 2022-23 | 247 | 17.5 | 14.1:1 | 8% (20) |
| 2020-21 | 245 | 17 | 14.4:1 | 10% (24) |
Source: NCES Common Core of Data. Rows are the federal collections on file for MOSAIC ELEMENTARY.
About MOSAIC ELEMENTARY
MOSAIC ELEMENTARY is a low-enrollment elementary school in St. Louis, Missouri, under MEHLVILLE R-IX. Federal data show 258 students enrolled in kindergarten through 5 in 2024-25.
The district, MEHLVILLE R-IX, operates 19 schools serving 10,095 students.
White students are 85% of those enrolled at MOSAIC ELEMENTARY. Next come 7% Black, 4% Hispanic, and 3% multiracial. That compares with about 62% White among all St. Louis County residents. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 28%.
There are about 14.5 students for every full-time-equivalent teacher at MOSAIC ELEMENTARY, which has 17.8. Elementary schools in Missouri have an average ratio of 12.4:1. Eligibility for free or reduced-price lunch stands at 10%. That rate is below the 43% average among public schools in St. Louis County.
MOSAIC ELEMENTARY scores 50.9% on state tests, averaged across results. The predicted figure, based on its student poverty level, is 51.1%.
For St. Louis County, Census Bureau data show the median household earns about $82,936 a year, 47% of adults hold a bachelor's degree or higher, and about 7% of people live in poverty. Counting MOSAIC ELEMENTARY, St. Louis County has 275 public schools.
At Home Academy is about 0.2 miles away, making it the nearest public school. There are at least 8 more public schools inside five miles. Ranking the closest schools with test data puts MOSAIC ELEMENTARY at 7th of 9.
NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment increased by 5% across 4 years, from 245 in 2020-21 to 258 in 2024-25.
MOSAIC ELEMENTARY has a community page on allk12 for topics such as athletics, class schedules, and weather closures. Teachers and staff are welcome to share updates too.
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 MEHLVILLE R-IX
- OAKVILLE SR. HIGHHigh · 1,847 students
- MEHLVILLE HIGH SCHOOLHigh · 1,388 students
- OAKVILLE MIDDLEMiddle · 629 students
- BERNARD MIDDLEMiddle · 577 students
- MARGARET BUERKLE MIDDLEMiddle · 549 students
- BIERBAUM ELEM.Elementary · 531 students
Other schools in St. Louis
- LINDBERGH SR. HIGHHigh · 2,304 students
- SOUTH CITYElementary · 838 students
- TRUMAN MIDDLE SCHOOLMiddle · 816 students
- DRESSEL ELEMENTARY SCHOOLElementary · 598 students
- CONCORD ELEM. SCHOOLElementary · 555 students
- GATEWAY SCIENCE ACADEMY HIGHHigh · 461 students
Nearby schools
- At Home Academy0.2 mi · 77
- MEHLVILLE HIGH SCHOOL0.3 mi · 1,388
- MARGARET BUERKLE MIDDLE0.9 mi · 549
- BIERBAUM ELEM.1.0 mi · 531
- BERNARD MIDDLE1.6 mi · 577
- FORDER ELEM.1.6 mi · 397
Frequently asked questions
About MOSAIC ELEMENTARYWhat is the total enrollment at MOSAIC ELEMENTARY?
MOSAIC ELEMENTARY enrolls approximately 258 students in grades KG-05.
What grades does MOSAIC ELEMENTARY serve?
MOSAIC ELEMENTARY serves grades KG-05.
How many teachers does MOSAIC ELEMENTARY have?
MOSAIC ELEMENTARY employs 18 FTE teachers, for a student-to-teacher ratio of 14.5:1.
What is the racial breakdown of students at MOSAIC ELEMENTARY?
At MOSAIC ELEMENTARY, the student body is approximately 85% White, 4% Hispanic, 7% Black, 2% Asian, 3% Two or more.
What district is MOSAIC ELEMENTARY in?
MOSAIC ELEMENTARY is part of MEHLVILLE R-IX.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.