Very Good
#416 of 2,221 schools in MO
Top 19% in state
Mason Elem.
Elementary School · St. Louis City · St. Louis, MO
A St. Louis City elementary school where students score 12 points above what's typical for similar communities.
6031 SOUTHWEST AVE, St. Louis, MO 63139
- Math 41% vs MO 48% (2025)
- Reading 34% vs MO 46% (2025)
- 15:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Mason Elem. score 37% proficient, which is above what's typical for similar communities (expected: 25%).
2025 MAP proficiency
Most recent published year. School vs. MO average.
Trend
↑ RecoveringProficiency declined earlier in the 17-year record (2009–2025), then recovered 8 points since 2021, reaching 37% in 2025.
Show all 16 years
Multi-year averages used by the rating model: math 39% (multi-year average, 2009-2025) · reading/ELA 43% (multi-year average, 2009-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 42 test records from MO state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
100%
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 Mason Elem. 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 75Very Walkable
- Transit 31Some Transit
- Bike 71Very 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
$74,749
Median home value
$199,400
Median rent
$1,086/mo
College educated
49.4%
Homeownership
60%
Poverty rate
7.3%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 63139; 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 |
|---|---|---|---|---|---|
| Gateway Science Acad/st LouisCharter · enrollment unverified | 6.0 | PK–5 | 0.7 mi | 385 | Compare → |
| Shaw Visual/perf. Arts Ctr.Enrollment path unverified | 6.1 | PK–5 | 0.7 mi | 281 | Compare → |
| Premier Charter SchoolCharter · enrollment unverified | 4.9 | PK–8 | 0.9 mi | 904 | Compare → |
| Mallinckrodt A.b.i. Elem.Enrollment path unverified | 7.3 | PK–5 | 1.0 mi | 283 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
St. Louis City
- Schools in district
- 68
- Rank in district
- #5 of 63
- District spending per student
- $22,979NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 31.3%Census SAIPE · 2024
Mason Elem. is listed in ST. LOUIS CITY; a district label does not verify attendance for an address.
About Mason Elem.
Mason Elem. is a public elementary school in St. Louis, MO, part of St. Louis City, serving approximately 391 students in grades Pre-K-6th with a 15:1 student-teacher ratio.
It holds a MySchoolScout rating of 7.8 out of 10 and ranks #416 of 2,221 schools in MO. State assessment records show 39% math proficiency (multi-year average, 2009-2025) and 43% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Mason Elem.
What grades does Mason Elem. serve?
Mason Elem. serves students in grades Pre-K through 6th.
How many students attend Mason Elem.?
Mason Elem. has an enrollment of approximately 391 students.
What is the student-teacher ratio at Mason Elem.?
The student-teacher ratio at Mason Elem. is 15:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mason Elem. rank in MO?
Mason Elem. ranks #416 of 2,221 schools in MO.
What is Mason Elem.'s MySchoolScout rating?
Mason Elem. has a current MySchoolScout rating of 7.8 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 Mason Elem.?
Based on loaded state assessment records, Mason Elem. has 39% math proficiency (multi-year average, 2009-2025) and 43% reading/ELA proficiency (multi-year average, 2009-2025).
Is Mason Elem. a charter school?
No, Mason Elem. is not a charter school. It is a traditional public school operated by the local school district.
Is Mason Elem. a Title I school?
No, Mason Elem. is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mason Elem.?
100.0% of students at Mason Elem. 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
- Pre-K – 6th
- Enrollment
- 391
- Student-Teacher Ratio
- 15:1
- Teachers (FTE)
- 26
- Type
- regular
- Setting
- Large City
- County
- St. Louis city
- Chronic Absenteeism (SY 2022-23)
- 18.2%
- Phone
- (314) 645-1201
- Area population (ZIP 63139)
- 21,811
- Area average commute
- 19.3 min
- Area median age
- 35.6
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 63139; 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, 2009-2025; directory SY 2023–24
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