Enrollment
1,370
Illinois · 2024-25 NCES data
High school (grades 9-12) · Darien, IL
Hinsdale South High School
Federal NCES profile for Hinsdale South High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 171932002223
👥 S:T ratio 48
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 54
📋 Attendance 42
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Hinsdale South High School earns 55/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois.
- #4 of 7
- public schools in Darien · Resource Index
- 55
- Resource Index · Higher
- 12.9:1
- students per teacher
- 1,370
- students enrolled
Hinsdale South High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Hinsdale South High School ranks #4 of 7 public schools in Darien, IL.
School address
District: Hinsdale Twp Hsd 86 · Illinois
NCES ID 171932002223 Verify on NCES CCD record →
Teachers (FTE)
106.0
Federal CCD staff survey
Students per teacher
12.9:1
vs 14:1 Illinois avg
-8% vs state
Student-teacher ratio in context
How Hinsdale South High School compares with Illinois and U.S. medians
What stands out at Hinsdale South High School
Hinsdale South High School is a large high school in Darien, Illinois, enrolling 1,370 students.
At 12.9:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
By headcount it is one of the larger campuses in Illinois, bigger than 96% of state schools at 1,370 students.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (49%) and African American (18%), more mixed than most schools in the state (diversity index 68/100).
On the academic-pipeline side it reports 24 Advanced Placement courses.
Counselor coverage is strong, about 228 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 23.4% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Hinsdale Twp Hsd 86 spends $30,688 per pupil, 80% above the Illinois average, a better-resourced district than most.
Its district, Hinsdale Twp Hsd 86, also runs Hinsdale Central High School (2,445 students).
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Hinsdale South High School compares
Hinsdale South High 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 | 12.9:1 | ▼ 8% | 14:1 | 15.7:1 |
| Enrollment | 1,370 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.9:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
1,370
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
12.9:1
students per teacher
- 8% below state mean
Top 41% in Illinois - lower ratio than 59% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
23.4%
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
$30,688
per pupil, district-wide
- above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors6.0 FTE
Per 228 students, the combined health-and-guidance staffing load for this school.
Discipline context
148
in-school suspensions + 15 out-of-school
Suspension rate: 10.8 per 100 students. Combined in-school and out-of-school rate: 11.9 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 49.4%
African American 18.0%
Hispanic or Latino 17.4%
Asian 10.1%
Two or More 5.0%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 49.4% of enrollment.
Student-body diversity index 68.1/100
Simpson diversity index - at 68.1, Hinsdale South High School is more mixed than the Illinois school average of 38.9.
Programs
AP courses offered 24
Funding & spending
District-wide per-pupil expenditure for Hinsdale Twp Hsd 86, which includes Hinsdale South High School.
$30,688
Per student
+80%
vs Illinois
Avg $17,042
+85%
vs U.S.
Avg $16,593
Revenue mix
Local 75.5%
State 22.4%
Federal 2.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Hinsdale South High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Hinsdale Central High School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Hinsdale South High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,445
- Students per teacher
- 14.1:1
- Resource Index
- 45/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,370 students)
Similar student-teacher ratio (~12.9:1)
Next steps
Verify locally before acting on Hinsdale South High School's federal record.
- Compare Hinsdale South High School against another school. Compare schools
- Hinsdale Twp Hsd 86's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Hinsdale South High School
How many students attend Hinsdale South High School?
Hinsdale South High School has 1,370 students enrolled. It is a high school in Darien, IL.
What is the student-teacher ratio at Hinsdale South High School?
The student-teacher ratio at Hinsdale South High School is 12.9:1, which is 8% lower than the Illinois average of 14:1 and 18% 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 Hinsdale South High School?
The largest demographic group at Hinsdale South High School is White at 49.4% of enrollment, in Darien, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.1/100.
What is the Resource Investment Index for Hinsdale South High School?
Hinsdale South High School has a Resource Investment Index of 55/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Hinsdale South High School rank among public schools in Darien?
By Resource Investment Index, Hinsdale South High School ranks #4 of 7 public schools in Darien, 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 Darien on the city page.
Is Hinsdale South High School a good school?
Hinsdale South High School earns 55/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Hinsdale Twp Hsd 86?
Besides Hinsdale South High School, Hinsdale Twp Hsd 86 also operates Hinsdale Central High School (2,445 students). See the Hinsdale Twp Hsd 86 district page for the complete list.
Related tools
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, or report a data error. Data current as of June 2026.