High · Regular · Grades 9 to 12
Comm High School Dist 99 - South High Sch, Downers Grove, IL
Comm High School Dist 99 - South High Sch is a public high school in Downers Grove, part of Chsd 99 School District. It enrolled 2,591 students in 2024-25, with 14.7 students per full-time teacher.Listed in NCES data as "Comm H S Dist 99 - South High Sch".
Enrollment and teachers
- Students
- 2,591
- Teachers (FTE)
- 176.0
- Students per teacher
- 14.7
- Grades
- 9 to 12
This school's ratio is about the same as the district figure of 14.3. The Illinois average across schools is 13.7. Ratios count all teachers, including specialists, so they are lower than typical class sizes.
This school14.7
District14.3
Illinois13.7
United States15.3
School details
- Address
- 1436 Norfolk St, Downers Grove, IL 60516
- Phone
- (630)795-8501
- District
- Chsd 99 School District
- County
- DuPage County
- Level
- High
- Type
- Regular
- Status
- Open
- Charter
- No
- Virtual
- No
- Locale
- City: Small
- NCES school ID
- 171257001519
Related schools
Other high schools in Chsd 99 School District
- Comm High School Dist 99 - North High School 2,082 students
We publish official enrollment and staffing data, not ratings or test scores.
Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.