- Enrollment
- 1,354
- Students per teacher
- 13.5:1
- Resource Index
- 27/100
Middle school (grades 6-8) · Belvidere, IL
Belvidere South Middle School
Federal NCES profile for Belvidere South Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 170579000256
👥 S:T ratio 58
🌟 Gifted program 30
🎓 Counselors 25
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Belvidere South Middle School earns 28/100 on the Resource Investment Index, even as it posts class sizes smaller than 86% of Illinois schools.
- #7 of 9
- public schools in Belvidere · Resource Index
- 28
- Resource Index · Lower
- 10.5:1
- small classes for Illinois
- 754
- students enrolled
Belvidere South Middle School has class sizes smaller than 86% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Belvidere South Middle School ranks #7 of 9 public schools in Belvidere, IL.
School address
District: Belvidere Cusd 100 · Illinois
NCES ID 170579000256 Verify on NCES CCD record →
NCES CCD universe card
School universe 170579000256 · Belvidere, IL Middle · MID · TRAD
754 enr · 10.5:1 · RII 28
Nearest enrollment peer: Belvidere North High Sch (1,354 students)
Resource Investment Index #7 of 9 public schools in Belvidere. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
Belvidere South Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Belvidere Nort
Belvidere North High Sch
1,354 students
- Belvidere High
Belvidere High School
1,167 students
- Belvidere Cent
Belvidere Central Middle School
911 students
- This school
Belvidere South Middle School
754 students
- Washington Aca
Washington Academy
721 students
- Meehan Element
Meehan Elementary School
688 students
What this shows Belvidere South Middle School reports 754 students on the CCD universe file.
How Belvidere South Middle School compares
Belvidere South Middle School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.5:1 | ▼ 25% | 14:1 | 15.7:1 |
| Enrollment | 754 | top 12% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.5:1
Leaner classes than 86% of US schools, among the more generously staffed nationally.
754
Bigger than 83% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
10.5:1
students per teacher
- 25% below state mean
Top 14% in Illinois - lower ratio than 86% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
44.0%
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
$18,002
per pupil, district-wide
- below Illinois avg of $18,196
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.0 FTE
Per 377 students, the combined health-and-guidance staffing load for this school.
Discipline context
86
in-school suspensions + 62 out-of-school
Suspension rate: 11.4 per 100 students. Combined in-school and out-of-school rate: 19.6 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 57.7%
White 34.5%
African American 3.6%
Two or More 3.2%
Asian 0.8%
American Indian / Alaska Native 0.3%
Largest group: Hispanic or Latino at 57.7% of enrollment.
Student-body diversity index 54.6/100
Simpson diversity index - at 54.6, Belvidere South Middle School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Belvidere Cusd 100, which includes Belvidere South Middle School.
$18,002
Per student
-1%
vs Illinois
Avg $18,196
+2%
vs U.S.
Avg $17,658
Revenue mix
Local 45.6%
State 47.3%
Federal 7.2%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Belvidere South Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Belvidere North High Sch | Larger | No free-lunch data | Higher S:T ratio |
| Belvidere High School | Larger | No free-lunch data | Higher S:T ratio |
| Belvidere Central Middle School | Similar size | No free-lunch data | Higher S:T ratio |
| Washington Academy | Similar size | No free-lunch data | Higher S:T ratio |
| Meehan Elementary School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Belvidere South Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,167
- Students per teacher
- 13.9:1
- Resource Index
- 32/100
- Enrollment
- 911
- Students per teacher
- 12.3:1
- Resource Index
- 27/100
- Enrollment
- 721
- Students per teacher
- 13.1:1
- Resource Index
- 37/100
- Enrollment
- 688
- Students per teacher
- 18.1:1
- Resource Index
- 30/100
Similar middle schools in Belvidere
1 comparable middle schools (grades 6-8) serving the same city.
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 (~754 students)
Frequently asked questions about Belvidere South Middle School
How many students attend Belvidere South Middle School?
Belvidere South Middle School has 754 students enrolled. It is a middle school in Belvidere, IL.
What is the student-teacher ratio at Belvidere South Middle School?
The student-teacher ratio at Belvidere South Middle School is 10.5:1, which is 25% lower than the Illinois average of 14:1 and 33% 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 Belvidere South Middle School?
The largest demographic group at Belvidere South Middle School is Hispanic or Latino at 57.7% of enrollment, in Belvidere, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.6/100.
What is the Resource Investment Index for Belvidere South Middle School?
Belvidere South Middle School has a Resource Investment Index of 28/100 (lower 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 Belvidere South Middle School rank among public schools in Belvidere?
By Resource Investment Index, Belvidere South Middle School ranks #7 of 9 public schools in Belvidere, 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 Belvidere on the city page.
What other schools are in Belvidere Cusd 100?
Besides Belvidere South Middle School, Belvidere Cusd 100 also operates Belvidere North High Sch (1,354 students), Belvidere High School (1,167 students), and Belvidere Central Middle School (911 students). See the Belvidere Cusd 100 district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.