Glenbard South High School
🇺🇸 Official data · 2025Glen Ellyn, Illinois 60137 · Glenbard Twp HSD 87
#77 of 691 high schools in Illinois
#6172 of 16,910 nationally
About Glenbard South High School
Glenbard South High School is a public high located in Glen Ellyn, in the Glenbard Twp HSD 87 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 1,090 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 58.5 out of 100, placing it in the top 50% of high schools in United States and 77th of 691 ranked high schools in Illinois. Its strongest component is community advantage (fewer free/reduced-price lunch) (82th percentile), and its weakest is reading proficiency (41th percentile).
Other published figures: enrollment 1,090.
There are 11 schools in Glen Ellyn; Glenbard South High School ranks 10th of 11 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)50%
- Reading proficiency (30%)48%
- Community advantage (fewer free/reduced-price lunch) (25%)29.4%
- Students per teacher (15%)15.8
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Glenbard South High School by the official sources.
- Enrollment
- 1,090
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 29.4%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 15.8
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 48%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 50%
- Share of tested students proficient or above (all students, all grades).
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Schools near Glenbard South High School
Closest schools by straight-line distance, with their Success Index (US).
Arbor View Elem School
Glen Ellyn · Public elementary · Grades PK–5
313 students · 734 m away
Briar Glen Elem School
Wheaton · Public elementary · Grades PK–5
523 students · 1.4 km away
Park View Elem School
Glen Ellyn · Public elementary · Grades K–5
390 students · 2.2 km away
Butterfield Elem School
Lombard · Public elementary · Grades K–5
293 students · 2.5 km away
Westfield Elem School
Glen Ellyn · Public elementary · Grades K–5
311 students · 2.5 km away
Glen Crest Middle School
Glen Ellyn · Public middle · Grades 6–8
723 students · 2.5 km away
Lincoln Elem School
Wheaton · Public elementary · Grades K–5
458 students · 3.1 km away
Lowell Elem School
Wheaton · Public elementary · Grades K–5
283 students · 3.9 km away
Abraham Lincoln Elem School
Glen Ellyn · Public elementary · Grades K–5
559 students · 3.9 km away
Edison Middle School
Wheaton · Public middle · Grades 6–8
635 students · 4.0 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Simeon Career Academy High School
Chicago · Public high · Grades 9–12
1,095 students
Hillcrest High School
Country Club Hills · Public high · Grades 9–12
1,100 students
Marion High School
Marion · Public high · Grades 9–12
1,075 students
Lanphier High School
Springfield · Public high · Grades 9–12
1,117 students
Northside College Preparatory Hs
Chicago · Public high · Grades 9–12
1,061 students
North-Grand High School
Chicago · Public high · Grades 9–12
1,061 students
Frequently asked questions
Is Glenbard South High School a good school?
Glenbard South High School has a Success Index (US) of 58.5 out of 100 (Top 50% of high schools in United States) and ranks #77 of 691 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Glenbard South High School rank in Illinois?
Glenbard South High School ranks #77 of 691 high schools in Illinois and #6172 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Glenbard South High School?
Glenbard South High School had 1,090 students in 2025.
Is Glenbard South High School a elementary school or a high school?
Glenbard South High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Glenbard South High School?
There are 10 schools within 15 km of Glenbard South High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.