At a glance
Reported students
1,090
NCES CCD 2024–25
Teachers (FTE)
69.15
NCES CCD 2024–25
Student–teacher ratio
15.8:1
Calculated; not a class-size measure
Grades served
09–12
NCES preliminary directory 2025–26
School benchmarks
Illinois high enrollment
79th percentile
Compared with 965 same-level schools reporting enrollment.
District median enrollment
2,195
Glenbard South High School: 1,090 reported students.
State peer staffing position
83rd percentile
15.8:1 reported; state peer median 12.6:1. Ratio is not class size.
Historical enrollment and staffing · CRDC 2021–22
These older figures are kept separate from 2024–25 statistics and benchmarks. Differences between years can reflect changes in enrollment, staffing, or reporting scope.
- Students
- 1,095
- Teachers (FTE)
- 81.4
- Student–teacher ratio
- 13.5:1
What the reported data says about Glenbard South High School
Glenbard South High School is a public high school serving grades 09–12 in Glen Ellyn. It is one of 4 current school records connected to Glenbard Twp HSD 87. NCES reports 1,090 students for 2024–25.
Among 965 high schools in Illinois with comparable records, this school is larger than the reported median of 254 students. Its enrollment is at approximately the 79th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 15.8:1, above the Illinois median of 12.6:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The largest reported race and ethnicity groups are White (55.5%) and Hispanic or Latino (18.3%). English learners represent 3.4% of enrollment. Students served under IDEA represent 16.6%. These figures help families understand who the school serves; they are not rating inputs.
The 2021–22 civil-rights collection reports AP student enrollment, computer science. The school reported 20 AP courses. Program availability changes, so families should confirm the current catalog and participation rules directly with the school.
Questions worth asking Glenbard South High School
- 1How do the reported 15.8:1 student–teacher ratio and 69.15 teacher FTE translate into actual class sizes by grade?
- 2Have the reported academic programs changed since the 2021–22 CRDC collection?
- 3What counseling support is available today? The school reported 4 counselor FTE in 2021–22.
- 4What meal assistance, transportation, after-school, and family-support services are currently available?
Enrollment needs
- English learners
- 3.4%
- Students with disabilities
- 16.6%
- Free/reduced-price lunch
- 29.4%
- Lunch program
- Yes participating without using any Provision or the CEO
Reported support staff
- Counselors (FTE)
- 4
- Nurses (FTE)
- 1
- Psychologists (FTE)
- 1.2
- Social workers (FTE)
- 1.3
CRDC 2021–22 full-time-equivalent counts; verify current assignments with the school.
Student demographics
Race and ethnicity share of reported enrollment
- White55.5%
- Hispanic18.3%
- Black9.7%
- Asian12.2%
- American Indian / Alaska Native0.1%
- Native Hawaiian / Pacific Islander0.4%
- Multiracial3.9%
Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.
Programs reported by the school
AP student enrollment
Students enrolled
20 distinct courses reported
Gifted and talented
Not reported as offered
Computer science
Offered
CRDC 2021–22: the AP flag records student enrollment; gifted and computer-science fields describe reported programs/classes. Confirm current courses and eligibility with the school.
Other schools in Glenbard Twp HSD 87
Start with campuses at the same school level or with similar reported enrollment.
Glenbard North High School
High · Grades 09–12
2,079 reported students
Glenbard East High School
High · Grades 09–12
2,311 reported students
Glenbard West High School
High · Grades 09–12
2,330 reported students
Public schools near Glenbard South High School
Closest campuses by straight-line distance between NCES geocodes, favoring the same school level. Distance is not drive time or an attendance assignment.
| School | Grades | Students | Distance |
|---|---|---|---|
| Lisle High School High · Lisle CUSD 202 | 09–12 | 447 | 2.7 mi |
| Glenbard West High School High · Glenbard Twp HSD 87 | 09–12 | 2,330 | 3.4 mi |
| Comm H S Dist 99 - North H S High · CHSD 99 | 09–12 | 2,082 | 3.5 mi |
| Glenbard East High School High · Glenbard Twp HSD 87 | 09–12 | 2,311 | 3.6 mi |
| Wheaton Warrenville South H S High · CUSD 200 | 09–12 | 1,864 | 4 mi |
| Wheaton North High School High · CUSD 200 | 09–12 | 1,863 | 4.3 mi |
Frequently asked questions about Glenbard South High School
What grades does Glenbard South High School serve?
Glenbard South High School reports grades 09–12 in the NCES 2025–26 preliminary directory. It is classified as a high school in Glenbard Twp HSD 87.
How many students attend Glenbard South High School?
Glenbard South High School reported 1,090 students in the NCES 2024–25 membership file. That places it near the 79th percentile among 965 Illinois high schools reporting enrollment. The 2021–22 civil-rights collection recorded 1,095 students.
What is the student–teacher ratio at Glenbard South High School?
The calculated ratio is 15.8:1, based on 1,090 students and 69.15 full-time-equivalent classroom teachers in 2024–25. The Illinois median for the same school level is 12.6:1. A ratio is not the same as average class size.
Is Glenbard South High School a public, charter, or magnet school?
Glenbard South High School is a public school and is not a charter school. Enrollment is generally based on Glenbard Twp HSD 87 attendance boundaries and transfer rules.
What share of Glenbard South High School students qualify for free or reduced-price meals?
29.4% of students were eligible for free or reduced-price lunch in 2024–25. This describes the students served and is not a quality measure.
Which school district is Glenbard South High School in?
Glenbard South High School is part of Glenbard Twp HSD 87, based in Glen Ellyn, IL, which operates 4 current schools. Confirm attendance zones and enrollment rules with the district.
What public schools are near Glenbard South High School?
The closest public schools by straight-line distance include Lisle High School (2.7 mi), Glenbard West High School (3.4 mi), Comm H S Dist 99 - North H S (3.5 mi). Distance does not determine eligibility; attendance boundaries and program rules do.