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SCHOOL COMMUNITY·EAST ST LOUIS SD 189·NCES 171332004977

Mason/Clark Middle School

5510 State St, East Saint Louis, IL 62203 · (618) 646-3750 · St. Clair County
GRADES 05–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL540 STUDENTS
D
allk12 Grade
Scored higher than 10% of Illinois public middle schools
  • FTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public middle schools

Enrollment
540
Middle
DISTRICT 450 · STATE 462
Student : Teacher
11.5:1
47 FTE teachers
DISTRICT 9.7:1 · STATE 13.0:1
Free / Reduced Lunch
98%
530 students
DISTRICT 99% · STATE 56%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 510419%
Grade 613124%
Grade 714928%
Grade 815328%
Grade 931%
Student demographics
10%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 9% · STATE 69% · US 70%
White
41%
DISTRICT 1% · STATE 45% · US 43%
Hispanic
143%
DISTRICT 2% · STATE 29% · US 30%
Black
51195%
DISTRICT 95% · STATE 16% · US 15%
Asian
10%
DISTRICT 0% · STATE 6% · US 6%
Two+
81%
DISTRICT 1% · STATE 5% · US 5%
Pacific Islander
20%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
29855%
Female
24245%

Discussions

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
15.6%
IL avg 51.0% . -0.4pp since 2023
Math
4.3%
IL avg 37.9% . +1.5pp since 2023

What this means: On the IAR + ISA, Illinois's statewide test, about 16 of every 100 students at this school read and write at grade level and about 4 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores have held steady since 2023, while math scores are up about 2 points.

IAR + ISA results by year

School yearEnglish Language ArtsMath
2024-2515.6%4.3%
2023-2416.0%2.8%
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
10.8%
composite math + reading, all grades
Predicted
14.8%
based on IL schools with similar FRL share
Beats by
-4.0pp
below demographic expectation

What this means: About 11% of students here test proficient in math and reading, compared with the roughly 15% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Mason/Clark Middle School

Mason/Clark Middle School's state test result (10.8% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Mason/Clark Middle School this school54098.1%10.8%
East St Louis-Lincoln Middle School
East Saint Louis
35998.9%16.0%
Creative Communications Academy
Calumet City
246100.0%13.7%
S T E M Academy
Calumet City
24399.6%20.7%
School of Fine Arts
Calumet City
22499.1%12.8%
Prairie-Hills Junior High School
Markham
76694.0%21.1%
Matched among Illinois middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Mason/Clark Middle School ranks

Among middle schools
MeasureThis schoolIn IllinoisIn St. Clair County
State test proficiency
ranked highest first
10.8%#573 of 578#17 of 18
Math proficiency
ranked highest first
4.3%#631 of 640
▼ 9
#18 of 19
▼ 1
Reading proficiency
ranked highest first
15.6%#630 of 640
▼ 27
#18 of 19
no change
Enrollment
ranked largest first
540#257 of 691#5 of 20
Students per teacher
ranked fewest first
11.5:1#131 of 558#3 of 17
Diversity index
ranked most diverse first
10.4%#541 of 560#15 of 17
Free and reduced lunch
ranked highest share first
98.1%#21 of 581#2 of 18
Enrollment change since 2017-18
ranked steepest decline first
-37.9%#12 of 440#2 of 12
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
540
-193 (-26%) vs 2020
-38% since 1990-91, when it was 871
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255404711.5:198% (530)
2023-245995510.9:197% (580)
2022-236155511.2:199% (610)
2020-21733N/AN/AN/A
2017-188705316.4:194% (821)
2015-166323219.8:199% (625)
2010-115404512.0:188% (475)
2000-017394416.8:1N/A
1990-918714419.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Mason/Clark Middle School.

Since 2017-18: students down 38% (870 to 540); teachers down 11% (53 to 47).

About Mason/Clark Middle School

Mason/Clark Middle School is a public mid-sized middle-grades school in East Saint Louis, Illinois. Its grade span covers grades 5 through 8, with 540 students on the rolls.

East St Louis SD 189 is responsible for 10 schools, Mason/Clark Middle School included, with 4,646 students in all.

At Mason/Clark Middle School, 95% of students are Black. Smaller groups are 3% Hispanic. For comparison, the population of St. Clair County is roughly 28% Black. On the diversity index, which measures the chance that two random students are from different groups, Mason/Clark Middle School scores 10%.

Mason/Clark Middle School reported 47 full-time-equivalent teachers in 2024-25, a ratio of 11.5:1. Middle schools in Illinois have an average ratio of 13.0:1. By family income, 98% of students are eligible for free or reduced-price lunch. On average, public schools in St. Clair County report 54%.

Mason/Clark Middle School holds a D allk12 Grade, placing it above 10% of Illinois public middle schools.

Mason/Clark Middle School posts an average proficiency rate across its state test results of 10.8%, compared with a predicted 14.8%. It is not in the top or bottom 10% of Illinois schools on BeatsExpectations.

In the surrounding county, St. Clair County, median household income comes to about $73,854, about 32% of adults have at least a bachelor's degree, and roughly 10% of residents are in poverty. St. Clair County has 96 public schools with about 40,879 students, including Mason/Clark Middle School.

Measured in a straight line, East St Louis Senior High School is about 0.4 miles from Mason/Clark Middle School. The five-mile area around Mason/Clark Middle School holds at least 8 other public schools. The nearest schools with test data average 23.3%, higher than Mason/Clark Middle School's 10.8%.

By NCES locale, the school is Suburb: Large, or in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

In 2024-25, the school enrolled 540, down from 733 in 2020-21.

This community page is for conversations about open houses, carpools, and field trips. Teachers and staff are welcome to share updates too.

St. Clair County at a glance

View full county profile
Population
253,694
Census ACS
Median income
$73,854
Household, ACS
Bachelor's+
32%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
96
40,879 students

Quick facts

School name
Mason/Clark Middle School
District
East St Louis SD 189
Address
5510 State St, East Saint Louis, IL 62203
Phone
(618) 646-3750
County
St. Clair County
Level
Middle
Grade range
05–08
Total enrollment
540
Teachers (FTE)
47
Student–teacher ratio
11.5:1
Free and reduced lunch
530 (98%)
Locale
21-Suburb: Large
NCES ID
171332004977
Charter school
No
Virtual school
No

Related schools

Other schools in East St Louis SD 189
Other schools in East Saint Louis
Nearby schools

Frequently asked questions

About Mason/Clark Middle School
How large is Mason/Clark Middle School?
Mason/Clark Middle School enrolls approximately 540 students in grades 05-08.
What grades does Mason/Clark Middle School serve?
Mason/Clark Middle School serves grades 05-08.
What is the student-teacher ratio at Mason/Clark Middle School?
The student-to-teacher ratio at Mason/Clark Middle School is approximately 11.5:1 (47 FTE teachers).
What is the racial breakdown of students at Mason/Clark Middle School?
At Mason/Clark Middle School, the student body is approximately 1% White, 3% Hispanic, 95% Black, 0% Asian, 1% Two or more.
What district is Mason/Clark Middle School in?
Mason/Clark Middle School is part of East St Louis SD 189.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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