Excellent
#148 of 2,221 schools in MO
Top 7% in state
Mosaic Elementary
Elementary School · Mehlville R-ix · St. Louis, MO
A Mehlville R-ix elementary school where students score 13 points above what's typical for similar communities.
3701 Will Ave., St. Louis, MO 63125
- Math 69% vs MO 48% (2025)
- Reading 77% vs MO 48% (2025)
- 14.8:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Mosaic Elementary score 73% proficient, which is above what's typical for similar communities (expected: 60%).
2025 MAP proficiency
Most recent published year. School vs. MO average.
Trend
↑ RecoveringProficiency declined earlier in the 9-year record (2017–2025), then recovered 16 points since 2021, reaching 73% in 2025.
Show all 8 years
Multi-year averages used by the rating model: math 66% (multi-year average, 2017-2025) · reading/ELA 69% (multi-year average, 2017-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 21 test records from MO state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
7.2%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Mosaic Elementary sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the St. Louis map →
Getting around & local context
- Walk 28Car-Dependent
- Transit 30Some Transit
- Bike 28Somewhat Bikeable
- City Safety: High7,108/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (St. Louis), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$59,683
Median home value
$166,200
Median rent
$920/mo
College educated
22.1%
Homeownership
74%
Poverty rate
10.8%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 63125; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| At Home AcademyEnrollment path unverified | Not rated | K–12 | 0.2 mi | 77 | Compare → |
| Green Park Lutheran SchoolPrivate · tuition | 5.5private | PK–8 | 0.7 mi | 193 | Compare → |
| Bierbaum Elem.Enrollment path unverified | 6.4 | K–5 | 1.0 mi | 524 | Compare → |
| St Mark SchoolPrivate · tuition | 8.2private | PK–8 | 1.4 mi | 121 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Mehlville R-ix
- Schools in district
- 19
- Rank in district
- #3 of 18
- District spending per student
- $12,165NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 7.5%Census SAIPE · 2024
Mosaic Elementary is listed in MEHLVILLE R-IX; a district label does not verify attendance for an address.
About Mosaic Elementary
Mosaic Elementary is a public elementary school in St. Louis, MO, part of Mehlville R-ix, serving approximately 251 students in grades Kindergarten-5th with a 14.8:1 student-teacher ratio. It holds a MySchoolScout rating of 8.5 out of 10 and ranks #148 of 2,221 schools in MO.
State assessment records show 66% math proficiency (multi-year average, 2017-2025) and 69% reading/ELA proficiency (multi-year average, 2017-2025).
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 ranks #148 of 2,221 schools in MO.
What is Mosaic Elementary's MySchoolScout rating?
Mosaic Elementary has a current MySchoolScout rating of 8.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Mosaic Elementary?
Based on loaded state assessment records, Mosaic Elementary has 66% math proficiency (multi-year average, 2017-2025) and 69% reading/ELA proficiency (multi-year average, 2017-2025).
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.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 5th
- Enrollment
- 251
- Student-Teacher Ratio
- 14.8:1
- Teachers (FTE)
- 17
- Type
- regular
- Setting
- Large Suburb
- County
- St. Louis County
- Chronic Absenteeism (SY 2022-23)
- 12.0%
- Phone
- (314) 467-7900
- Area population (ZIP 63125)
- 32,701
- Area average commute
- 24 min
- Area median age
- 38.4
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2025 MAP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 MAP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- State assessments · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 63125; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2017-2025; directory SY 2023–24
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