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A+

Glenbrook South High School

PublicHighGrades 9–12

4000 W Lake Ave, Glenview, IL 60026 · (847) 729-2000 · Part of Northfield Township High School District 225

Northfield Township’s School Grade A better than 91% of Illinois school districts

Students
2,923
Students per teacher
13:1
Setting
Suburb
Grades
9–12
The gist

What stands out about Glenbrook South High School

  • Its own letter, A+: reading and math results near the top of Illinois’s public schools
  • Math proficiency 34 pts above the state
  • Reading / language arts 32 pts above the state

On the path

Where Northfield Township kids come from and go next. The whole path →

6–8Attea Middle Schoolin Glenview
9–12Glenbrook South High SchoolYou are here

Test scores

2020–21
Math proficiency60%
State average 25.9%
Reading / language arts63%
State average 30.7%

Its own letter, A+, places these results among Illinois’s 3,406 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

4000 W Lake Ave, Glenview

Students

Enrollment by grade
Grade 9638
Grade 10755
Grade 11763
Grade 12767
Enrollment over time
3,139’20
3,080’21
3,030’22
3,015’23
2,923’24

Down 6.9% since 2020–21.

Who goes here
White 54%Asian 23%Hispanic 16%Two or more races 5%Black 2%Native Hawaiian/Pacific Islander <1%American Indian/Alaska Native <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Glenbrook South High School from Northfield Township families.

Other schools in Northfield Township High School District 225

The district →

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against Illinois’s other public schools; Northfield Township’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.