Very Good
#310 of 2,216 schools in MO
Top 14% in state
Mosaic Elementary
Elementary School · MEHLVILLE R-IX
3701 Will Ave., St. Louis, MO 63125
Enrollment
251
Student-Teacher
14.8:1
Score
7.9
Grades
Kindergarten – 5th
Enrollment
251
Student-Teacher
14.8:1
Score
7.9
Grades
Kindergarten – 5th
Updated
2022-23
Updated 2022-23
How this school compares
In St. Louis
#1 of 10
public schools
Missouri elementary schools
#205 of 1,202
In district
#2 of 18
MEHLVILLE R-IX
Academic performance
9.7 / 10
Exceptional
About Mosaic Elementary
Mosaic Elementary serves 251 students in kindergarten through fifth grade in St. Louis County, delivering impressive academic results that place it among Missouri's top-performing elementary schools. With a student-teacher ratio of 14.8:1 and 17 full-time equivalent teachers, the school maintains an intimate learning environment that clearly supports student success.
The school's academic excellence is evident in its outstanding performance metrics. Mosaic Elementary ranks #181 out of 2,234 schools statewide, placing it in the 92nd percentile among Missouri elementary schools. Students consistently demonstrate strong academic achievement, with 72% scoring proficient or above in both English Language Arts and mathematics across all grade levels.
This remarkable consistency across core subjects reflects the school's commitment to comprehensive educational excellence. Located on Will Avenue in a large suburban setting, Mosaic Elementary serves a stable residential community in the 63125 ZIP code area. The neighborhood features a median household income of $58,755 and median home values of $160,700, with a relatively low poverty rate of 11.1%.
While 22% of area residents hold bachelor's degrees or higher, the school's exceptional academic performance demonstrates its ability to help all students reach their potential regardless of background. Mosaic Elementary stands as a beacon of educational achievement in this thriving St. Louis County suburban community.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
Data not available for this school
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Mosaic Elementary — Students at Mosaic Elementary score 72% proficient, which is above what's typical for similar communities (expected: 57%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
7.2%
Students qualifying for federal meal assistance
Test Scores MO EDFACTS (2021-22)
Based on 6 test records from MO state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.4/10.
How Mosaic Elementary Compares
See how Mosaic Elementary performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has remained stable from 72% (2019) to 72% (2022). Reading/ELA proficiency has improved from 67% (2019) to 72% (2022).
Location
3701 Will Ave., St. Louis, MO 63125
Nearby Alternatives
Families considering Mosaic Elementary may also want to explore other elementary schools in the area. ST MARK SCHOOL (rated 8.2/10, 1.4 miles away), with a very similar rating. Another option is BEASLEY ELEM. (rated 8.2/10, 2.0 miles away), with a very similar rating. Additionally, FORDER ELEM. (rated 6.8/10, 1.6 miles away), a more accessible option. For more schools in St. Louis, see our St. Louis schools guide .
Nearby Schools
20 within 2.6 mi| School | Distance | Rating |
|---|---|---|
| At Home Academy St. Louis | 0.2 mi | — |
| MEHLVILLE HIGH SCHOOL St. Louis | 0.3 mi | 6.0 |
| GREEN PARK LUTHERAN SCHOOL St. Louis | 0.7 mi | 5.5 |
| MARGARET BUERKLE MIDDLE St. Louis | 0.9 mi | 5.5 |
| BIERBAUM ELEM. St. Louis | 1.0 mi | 5.2 |
| ST MARK SCHOOL St. Louis | 1.4 mi | 8.2 |
| BERNARD MIDDLE St. Louis | 1.6 mi | 5.7 |
| FORDER ELEM. St. Louis | 1.6 mi | 6.8 |
| ST SIMON THE APOSTLE St. Louis | 1.8 mi | 6.3 |
| ST MARGARET MARY ALACOQUE SCHOOL St. Louis | 2.2 mi | 5.1 |
| HANCOCK PLACE MIDDLE Lemay | 1.8 mi | 7.6 |
| BEASLEY ELEM. St. Louis | 2.0 mi | 8.2 |
| HANCOCK SR. HIGH St. Louis | 1.9 mi | 5.9 |
| JOHN CARY EARLY CHILDHOOD CTR. St. Louis | 2.2 mi | 5.7 |
| DRESSEL ELEMENTARY SCHOOL St. Louis | 2.1 mi | 4.7 |
| BLADES ELEM. St. Louis | 2.5 mi | 3.6 |
| BAYLESS SENIOR HIGH St. Louis | 2.6 mi | 6.4 |
| OAKVILLE ELEM. St. Louis | 2.6 mi | 4.8 |
| BAYLESS JUNIOR HIGH St. Louis | 2.6 mi | 6.2 |
| BAYLESS ELEMENTARY St. Louis | 2.6 mi | 5.9 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 63125 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$59,683
Median Home Value
$166,200
Median Rent
$920/mo
Population
32,701
College Educated
22.1%
Homeownership
74%
Avg Commute
24 min
Poverty Rate
10.8%
Median Age
38.4
Community Profile
The community surrounding Mosaic Elementary has a median household income of $59,683. It is a community where 22% of adults hold a bachelor's degree or higher. The median home value in the area is $166,200, with a median rent of $920/month. The area has a poverty rate of 10.8%. The average commute for residents is 24 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ATLAS ELEMENTARY St. Louis, MO | 7.9 |
| EMGE ELEM. O'Fallon, MO | 7.9 |
| HOWELL VALLEY ELEM. West Plains, MO | 7.9 |
| MCGRATH ELEM. Brentwood, MO | 7.9 |
| MOUNT VERNON INTERMEDIATE Mount Vernon, MO | 7.9 |
| SOUTH ELEMENTARY Edwards, MO | 7.9 |
Frequently Asked Questions
Common questions about Mosaic Elementary
What grades does Mosaic Elementary serve?
Mosaic Elementary serves students in grades Kindergarten through 5th.
How many students attend Mosaic Elementary?
Mosaic Elementary has an enrollment of approximately 251 students.
What is the student-teacher ratio at Mosaic Elementary?
The student-teacher ratio at Mosaic Elementary is 14.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mosaic Elementary rank in MO?
Mosaic Elementary is ranked #310 out of 2,216 schools in MO.
What is Mosaic Elementary's MySchoolScout rating?
Mosaic Elementary has a composite rating of 7.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Mosaic Elementary?
Based on the most recent state assessment data, Mosaic Elementary has 65.3% math proficiency and 67.0% reading/ELA proficiency.
Is Mosaic Elementary a charter school?
No, Mosaic Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Mosaic Elementary a Title I school?
No, Mosaic Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mosaic Elementary?
7.2% of students at Mosaic Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- Walk Score
- 28 Car-Dependent
- Transit Score
- 30 Some Transit
- Bike Score
- 28 Somewhat Bikeable
- City Safety
- High (7,108/100K)
Powered by 
FBI UCR 2024. City-level (St. Louis). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 5th
- Enrollment
- 251
- Student-Teacher Ratio
- 14.8:1
- Teachers (FTE)
- 17
- Free/Reduced Lunch
- 7.2%
- Type
- regular
- Setting
- Large Suburb
- County
- St. Louis County
- Phone
- (314) 467-7900
- Data Year
- 2023–2024
Resources & Links
District
MEHLVILLE R-IX- District Enrollment
- 10,162
- Schools in District
- 19
- Per-Pupil Spending
- $12,165
- District Rank
- #2 of 18
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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