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Comm H S Dist 99 - South High Sch

1436 Norfolk St, Downers Grove, IL 60516

BSchola Grade
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Grades
9–12
High
Students
2,591
Enrolled 2024–25
Students per teacher
14.7 : 1
Full-time teachers
District
Chsd 99
DuPage County

Schola Grade B · Above average

Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Test scores34% proficient in math & reading
77thpercentile
Equity17% of low-income students proficient
71stpercentile
Attendance34% chronically absent
42ndpercentile
Graduation rate92% graduate in 4 years
67thpercentile
College readinessAt least 17% take AP, IB or dual-enrollment courses
40thpercentile
Class size14.7 students per teacher
38thpercentile

Percentiles compare this school with other Illinois high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Comm H S Dist 99 - South High Sch

Comm H S Dist 99 - South High Sch is a public high school in Downers Grove, Illinois, serving grades 9–12. It is part of Chsd 99. The school is located in a small city in DuPage County.

In the 2024–25 school year, 2,591 students were enrolled, with about 14.7 students for every full-time teacher. That ratio is larger than the typical Illinois high school (13.3 students per teacher). Its Schola Grade is B (above average), compared with 684 Illinois high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

1436 Norfolk St
Downers Grove, IL 60516
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
2,591 students
Students per teacher
14.7 to 1
AP courses offered
14
Charter school
No
Magnet school
No
Locale
City — Small
School district
Chsd 99
County
DuPage County
NCES school ID
171257001519

Schools near Comm H S Dist 99 - South High Sch

All 25 schools in Downers Grove →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.