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Elementary school · St. Louis City

Mason Elem.

Mason Elem. serves grades Pre-K–6 for 391 students in St. Louis City.

School calendar At a glance Directions

Next day off: Mon, Nov 2 · No School · All days off

St. Louis City calendar

Key dates

Nov2
No SchoolMonday · All dayKey date
Nov3
No School - Election DayTuesday · All dayKey date
Nov11
Veteran's Day Schools and District Offices ClosedWednesday · All dayKey date
Dec21
NO SCHOOL for Winter BreakMonday · Dec 21 – Dec 31Key date
Dec24
Schools and District Offices Closed for ChristmasThursday · Dec 24 – Dec 25Key date
Dec31
Schools and District Offices ClosedThursday · Dec 31 – Jan 1Key date

Coming up

Dec7
BOE Real Estate MeetingMonday · 3:00 PM · Central Office 801 N. 11th Street
Jan15
No School - Record Keeping DayFriday · All dayKey date
Jan18
Dr. MLK Jr. Day - Schools and District Offices ClosedMonday · All dayKey date
Jan19
BOE Real Estate MeetingTuesday · 3:00 PM · Central Office 801 N. 11th Street
Feb10
2-Hour Early Release - Professional DevelopmentWednesday · All dayKey date
Feb15
Presidents' Day - No School and District Offices ClosedMonday · All dayKey date
Feb16
BOE Real Estate MeetingTuesday · 3:00 PM · Central Office 801 N. 11th Street
Mar26
No SchoolFriday · All dayKey date

Last checked Oct 31, 2026, 5:38 PM. Confirm dates with the district ↗. Recurring calendar entries may not appear here.

It is the 4th largest of the 42 St. Louis City elementary schools in St. Louis. Its 15 students per teacher compares with a median of 12.5 for those schools. Enrollment fell from 474 in 2019–20 to 391 in 2023–24. Its largest grade in 2023–24 was grade 3, with 61 students. 100% of students qualified for free or reduced-price lunch (391 free, 0 reduced-price). It ran a schoolwide Title I program in 2021–22. The closest park is Clifton Heights Park (0.2 mi).

At a glance

Mason Elem. by the numbers

Student–teacher ratio is not classroom size.

GradesPre-K–6

Students391

Teachers26

Students per teacher15

Free or reduced-price lunch100%

School typeRegular School

DistrictSt. Louis City

Title ISchoolwide program (2021–22)

Enrollment

Students at Mason Elem.

Students by grade, 2023–24

Pre-K58
K45
151
247
361
441
557
631

Total enrollment by school year

2019–20474
2020–21462
2021–22406
2022–23389
2023–24391

Nearby

Parks near Mason Elem.

All parks

Park · 0.2 miClifton Heights ParkPlayground Park · 0.5 miFrisco Park Park · 0.5 miSublette ParkPlayground

Contact

Address, phone and official links

6031 SOUTHWEST AVE, St Louis 63139

(314) 645-1201

St. Louis City website ↗School Data report cards ↗NCES school record ↗Directions ↗

State school ID 5340115115 (search it on School Data) · NCES ID 292928001930

St. Louis City

Other elementary schools in the district

All schools

Pre-K–5Shaw Visual/Perf. Arts Ctr.281 students Pre-K–5Mallinckrodt A.B.I. Elem.283 students Pre-K–2Wilkinson Early Childhood Ctr.290 students Pre-K–5Betty Wheeler Classical Jr. Ac221 students Pre-K–5Buder Elem.383 students Pre-K–5Dewey Sch.-Internat'L. Studies369 students

Nearby

Schools nearby

School · 1.0 miSouth City Catholic Academy Learning CenterGrades 2–8 Middle school · 1.0 miGateway Science Academy MiddleGrades 6–8 High school · 1.0 miGateway Science Academy HighGrades 9–12 School · 1.0 miSt Ambrose SchoolGrades Pre-K–8 School · 1.1 miSouth City Community SchoolGrades Pre-K–8 High school · 1.1 miCentral Visual/Perf. Arts HighGrades 9–12

Source: NCES Common Core of Data 2019–20 to 2023–24, via the Urban Institute Education Data Portal; parks from OpenStreetMap. Contact the school or district to confirm enrollment boundaries, schedules and programs.

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