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Middle · Regular · Grades 5 to 8

Mason/Clark Middle Sch, East Saint Louis, IL

CEP schoolMason/Clark Middle Sch is a public middle school in East Saint Louis, part of East St Louis SD 189. It enrolled 540 students in 2024-25, with 11.7 students per full-time teacher.

Enrollment and teachers

Students
540
Teachers (FTE)
46.0
Students per teacher
11.7
Grades
5 to 8

This school's ratio is 0.7 lower than the district figure of 12.4. The Illinois average across schools is 13.7. Ratios count all teachers, including specialists, so they are lower than typical class sizes.

This school11.7
District12.4
Illinois13.7
United States15.3

School details

Address
5510 State St, East Saint Louis, IL 62203
Phone
(618)646-3750
District
East St Louis SD 189
County
St. Clair County
Level
Middle
Type
Regular
Status
Open
Charter
No
Virtual
No
Locale
Suburb: Large
NCES school ID
171332004977
Location from NCES coordinates. Map data OpenStreetMap contributors. Open larger map

School meals

Counts of students eligible for free or reduced-price lunch, as reported to NCES.
Free or reduced-price lunch
53098.1% of enrollment.
Community Eligibility Provision
Yes (CEP school)

Schools in the Community Eligibility Provision (CEP) serve free meals to all students, so their free lunch counts often reflect direct certification or total enrollment. Free and reduced lunch shares are not comparable between CEP and non-CEP schools.

Related schools

Other middle schools in East St Louis SD 189

We publish official enrollment and staffing data, not ratings or test scores.

Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.