- Enrollment
- 1,288
- Students per teacher
- 15.7:1
- Resource Index
- 39/100
Elementary school (grades K-5) · East Saint Louis, IL
Mason/Clark Middle Sch
Federal NCES profile for Mason/Clark Middle Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataElementary school (grades K-5)NCES 171332004977
👥 S:T ratio 61
🌟 Gifted program 30
🎓 Counselors 73
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mason/Clark Middle Sch earns 41/100 on the Resource Investment Index, with class sizes smaller than 91% of Illinois schools. It is also less racially and ethnically mixed than most Illinois schools.
- #2 of 4
- elementary schools in East Saint Louis · Resource Index
- 41
- Resource Index · Typical
- 9.8:1
- small classes for Illinois
- 540
- students enrolled
Mason/Clark Middle Sch has class sizes smaller than 91% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Mason/Clark Middle Sch ranks #2 of 4 elementary schools in East Saint Louis, IL.
School address
District: East St Louis Sd 189 · Illinois
NCES ID 171332004977 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-16 students YoY
Mason/Clark Middle Sch held near 599 students from 2022-23 to 2023-24 (-16 headcount).
Teacher FTE held 55.0 → 55.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-16 students YoY 171332004977 · East Saint Louis, IL Elementary · MID · TRAD
540 enr · 9.8:1 · RII 41
Nearest enrollment peer: East St Louis Senior High School (1,288 students)
Mason/Clark Middle Sch held near 599 students from 2022-23 to 2023-24 (-16 headcount). Teacher FTE held 55.0 → 55.0 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Mason/Clark Middle Sch in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- East St Louis
East St Louis Senior High School
1,288 students
- This school
Mason/Clark Middle Sch
540 students
- Wyvetter Young
Wyvetter Younge Sch of Excellence
534 students
- Katie Harper-W 418
Katie Harper-Wright Elem
418 students
- Vivian Adams E 377
Vivian Adams Early Child Ctr
377 students
- Annette Office 362
Annette Officer Elementary
362 students
What this shows Mason/Clark Middle Sch reports 540 students on the CCD universe file.
How Mason/Clark Middle Sch compares
Mason/Clark Middle Sch held steady on CCD headcount: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.8:1 | ▼ 30% | 14:1 | 15.7:1 |
| Enrollment | 540 | top 26% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.8:1
Leaner classes than 90% of US schools, among the more generously staffed nationally.
540
Bigger than 66% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
9.8:1
students per teacher
- 30% below state mean
Top 9% in Illinois - lower ratio than 91% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
92.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$27,439
per pupil, district-wide
- above Illinois avg of $18,196
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 135 students, the combined health-and-guidance staffing load for this school.
Discipline context
19
in-school suspensions + 0 out-of-school
Suspension rate: 3.5 per 100 students. Combined in-school and out-of-school rate: 3.5 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
African American 94.6%
Hispanic or Latino 2.6%
Two or More 1.5%
White 0.7%
Native Hawaiian / Pacific Islander 0.4%
Asian 0.2%
Largest group: African American at 94.6% of enrollment.
Student-body diversity index 10.4/100
Simpson diversity index - at 10.4, Mason/Clark Middle Sch is less mixed than the Illinois school average of 38.9.
Programs
District finance for East St Louis Sd 189 reports $27,439 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mason/Clark Middle Sch Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East St Louis Senior High School | Larger | No free-lunch data | Higher S:T ratio |
| Wyvetter Younge Sch of Excellence | Similar size | No free-lunch data | Higher S:T ratio |
| Katie Harper-Wright Elem | Similar size | No free-lunch data | Higher S:T ratio |
| Vivian Adams Early Child Ctr | Smaller | No free-lunch data | Higher S:T ratio |
| Annette Officer Elementary | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Mason/Clark Middle Sch's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 534
- Students per teacher
- 17.8:1
- Resource Index
- 29/100
- Enrollment
- 418
- Students per teacher
- 13.9:1
- Resource Index
- 25/100
- Enrollment
- 377
- Students per teacher
- 14:1
- Resource Index
- 58/100
- Enrollment
- 362
- Students per teacher
- 12.5:1
- Resource Index
- 27/100
Similar elementary schools in East Saint Louis
3 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~540 students)
Frequently asked questions about Mason/Clark Middle Sch
How many students attend Mason/Clark Middle Sch?
Mason/Clark Middle Sch has 540 students enrolled. It is an elementary school in East Saint Louis, IL. CCD year-over-year: 615 (2022-23) → 599 (2023-24), nearly flat (-16).
What is the student-teacher ratio at Mason/Clark Middle Sch?
The student-teacher ratio at Mason/Clark Middle Sch is 9.8:1, which is 30% lower than the Illinois average of 14:1 and 38% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Mason/Clark Middle Sch?
The largest demographic group at Mason/Clark Middle Sch is African American at 94.6% of enrollment, in East Saint Louis, IL.
What is the Resource Investment Index for Mason/Clark Middle Sch?
Mason/Clark Middle Sch has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mason/Clark Middle Sch rank among elementary schools in East Saint Louis?
By Resource Investment Index, Mason/Clark Middle Sch ranks #2 of 4 elementary schools in East Saint Louis, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in East Saint Louis on the city page.
What other schools are in East St Louis Sd 189?
Besides Mason/Clark Middle Sch, East St Louis Sd 189 also operates East St Louis Senior High School (1,288 students), Wyvetter Younge Sch of Excellence (534 students), and Katie Harper-Wright Elem (418 students). See the East St Louis Sd 189 district page for the complete list.