- Enrollment
- 1,059
- Students per teacher
- 18.9:1
- Resource Index
- 25/100
Middle school (grades 6-8) · Decatur, IL
Stephen Decatur Middle School
Federal NCES profile for Stephen Decatur Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 171185004100
👥 S:T ratio 43
🌟 Gifted program 30
🎓 Counselors 59
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Stephen Decatur Middle School earns 33/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also more racially and ethnically mixed than most Illinois schools.
- #1 of 15
- public schools in Decatur · Resource Index
- 33
- Resource Index · Typical
- 14.2:1
- students per teacher
- 413
- students enrolled
Stephen Decatur Middle School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Stephen Decatur Middle School ranks #1 of 15 public schools in Decatur, IL.
School address
District: Decatur Sd 61 · Illinois
NCES ID 171185004100 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+8 students YoY
Stephen Decatur Middle School held near 467 students from 2022-23 to 2023-24 (+8 headcount).
Teacher FTE lost 29.0 → 23.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+8 students YoY 171185004100 · Decatur, IL Middle · SMALL · TRAD
413 enr · 14.2:1 · RII 33
Nearest enrollment peer: Macarthur High School (1,059 students)
Stephen Decatur Middle School held near 467 students from 2022-23 to 2023-24 (+8 headcount). Teacher FTE lost 29.0 → 23.0 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Stephen Decatur Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Macarthur High
Macarthur High School
1,059 students
- Eisenhower Hig
Eisenhower High School
909 students
- Johns Hill Mag
Johns Hill Magnet School
627 students
- Montessori Aca
Montessori Academy for Peace
586 students
- Dennis Lab Sch
Dennis Lab School
579 students
- This school 413
Stephen Decatur Middle School
413 students
What this shows Stephen Decatur Middle School reports 413 students on the CCD universe file.
How Stephen Decatur Middle School compares
Stephen Decatur Middle School 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 | 14.2:1 | ▲ 1% | 14:1 | 15.7:1 |
| Enrollment | 413 | top 43% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.2:1
Leaner classes than 55% of US schools, a middle-of-the-pack class size.
413
Bigger than 49% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
14.2:1
students per teacher
- 1% above state mean
Top 60% in Illinois - lower ratio than 40% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
85.7%
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
$15,611
per pupil, district-wide
- below Illinois avg of $18,196
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 207 students, the combined health-and-guidance staffing load for this school.
Discipline context
62
in-school suspensions + 163 out-of-school
Suspension rate: 15.0 per 100 students. Combined in-school and out-of-school rate: 54.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Student demographics
African American 53.0%
White 29.1%
Two or More 13.6%
Hispanic or Latino 4.4%
Largest group: African American at 53.0% of enrollment.
Student-body diversity index 61.4/100
Simpson diversity index - at 61.4, Stephen Decatur Middle School is more mixed than the Illinois school average of 38.9.
Programs
District finance for Decatur Sd 61 reports $15,611 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Stephen Decatur Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Macarthur High School | Larger | No free-lunch data | Higher S:T ratio |
| Eisenhower High School | Larger | No free-lunch data | Higher S:T ratio |
| Johns Hill Magnet School | Larger | No free-lunch data | Higher S:T ratio |
| Montessori Academy for Peace | Larger | No free-lunch data | Similar S:T ratio |
| Dennis Lab School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Stephen Decatur Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 909
- Students per teacher
- 16.5:1
- Resource Index
- 16/100
- Enrollment
- 627
- Students per teacher
- 16.5:1
- Resource Index
- 30/100
- Enrollment
- 586
- Students per teacher
- 15:1
- Resource Index
- 29/100
- Enrollment
- 579
- Students per teacher
- 17:1
- Resource Index
- 16/100
Nationwide middle 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 (~413 students)
Frequently asked questions about Stephen Decatur Middle School
How many students attend Stephen Decatur Middle School?
Stephen Decatur Middle School has 413 students enrolled. It is a middle school in Decatur, IL. CCD year-over-year: 459 (2022-23) → 467 (2023-24), nearly flat (+8).
What is the student-teacher ratio at Stephen Decatur Middle School?
The student-teacher ratio at Stephen Decatur Middle School is 14.2:1, which is 1% higher than the Illinois average of 14:1 and 10% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Stephen Decatur Middle School?
The largest demographic group at Stephen Decatur Middle School is African American at 53.0% of enrollment, in Decatur, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.4/100.
What is the Resource Investment Index for Stephen Decatur Middle School?
Stephen Decatur Middle School has a Resource Investment Index of 33/100 (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 Stephen Decatur Middle School rank among public schools in Decatur?
By Resource Investment Index, Stephen Decatur Middle School ranks #1 of 15 public schools in Decatur, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Decatur on the city page.
What other schools are in Decatur Sd 61?
Besides Stephen Decatur Middle School, Decatur Sd 61 also operates Macarthur High School (1,059 students), Eisenhower High School (909 students), and Johns Hill Magnet School (627 students). See the Decatur Sd 61 district page for the complete list.