Enrollment
2,665
Illinois · 2024-25 NCES data
High school (grades 9-12) · South Elgin, IL
Federal NCES profile for South Elgin High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 59/100.
The verdict
South Elgin High School earns 59/100 on the Resource Investment Index, with class sizes larger than 85% of Illinois schools. It is also one of the largest schools in Illinois.
South Elgin High School has class sizes larger than 85% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, South Elgin High School ranks #2 of 6 public schools in South Elgin, IL.
Enrollment
2,665
Illinois · 2024-25 NCES data
Teachers (FTE)
172.0
Federal CCD staff survey
Students per teacher
16.5:1
vs 14:1 Illinois avg
+18% vs state
How South Elgin High School compares with Illinois and U.S. medians
Slightly above state median
16.5:1 - 2.5 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
South Elgin High School is a large high school in South Elgin, Illinois, enrolling 2,665 students.
Class loads run somewhat heavier than typical: 16.5:1 puts it in the larger third of Illinois schools by student-teacher ratio.
By headcount it is one of the larger campuses in Illinois, bigger than 99% of state schools at 2,665 students.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is led by Hispanic or Latino (39%) and White (38%), more mixed than most schools in the state (diversity index 68/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 333 students sharing each counselor, though short of the most stretched campuses.
Discipline events run high: 633 in- and out-of-school suspensions were reported for 2,665 students in the 2021-22 Civil Rights Data Collection.
Sd U-46 also operates Elgin High School (2,576 students) and Larkin High School (2,174 students) alongside South Elgin High School.
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
South Elgin 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 | 16.5:1 | ▲ 18% | 14:1 | 15.7:1 |
| Enrollment | 2,665 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: Hispanic or Latino at 38.7% of enrollment.
Simpson diversity index - at 68.3, South Elgin High School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Sd U-46, which includes South Elgin High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Elgin High School | Similar size | No free-lunch data | Higher S:T ratio |
| Larkin High School | Similar size | No free-lunch data | Similar S:T ratio |
| Bartlett High School | Similar size | No free-lunch data | Similar S:T ratio |
| Streamwood High School | Smaller | No free-lunch data | Similar S:T ratio |
| Kenyon Woods Middle School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to South Elgin High School's own figures; each column derives from NCES Common Core of Data.
Next steps
Verify locally before acting on South Elgin High School's federal record.
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.
South Elgin High School has 2,665 students enrolled. It is a high school in South Elgin, IL.
The student-teacher ratio at South Elgin High School is 16.5:1, which is 18% higher than the Illinois average of 14:1 and 5% higher than the national average of 15.7:1.
The largest demographic group at South Elgin High School is Hispanic or Latino at 38.7% of enrollment, in South Elgin, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.3/100.
South Elgin High School has a Resource Investment Index of 59/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, South Elgin High School ranks #2 of 6 public schools in South Elgin, 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 South Elgin on the city page.
South Elgin High School earns 59/100 on the Resource Investment Index, with class sizes larger than 85% of Illinois schools. 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.
Besides South Elgin High School, Sd U-46 also operates Elgin High School (2,576 students), Larkin High School (2,174 students), and Bartlett High School (2,037 students). See the Sd U-46 district page for the complete list.