High · Regular · Grades 9 to 12
Glenbrook North High School, Northbrook, IL
Glenbrook North High School is a public high school in Northbrook, part of Glenbrook HSD 225 School District. It enrolled 2,111 students in 2024-25, with 13.1 students per full-time teacher.
Enrollment and teachers
- Students
- 2,111
- Teachers (FTE)
- 161.0
- Students per teacher
- 13.1
- Grades
- 9 to 12
This school's ratio is about the same as the district figure of 12.7. The Illinois average across schools is 13.7. Ratios count all teachers, including specialists, so they are lower than typical class sizes.
This school13.1
District12.7
Illinois13.7
United States15.3
School details
- Address
- 2300 Shermer Rd, Northbrook, IL 60062
- Phone
- (847)272-6400
- County
- Cook County
- Level
- High
- Type
- Regular
- Status
- Open
- Charter
- No
- Virtual
- No
- Locale
- Suburb: Large
- NCES school ID
- 172901003042
Related schools
Other high schools in Glenbrook HSD 225 School District
- Glenbrook South High School 2,923 students
- Glenbrook Evening High School 0 students
- Glenbrook Off Campus 0 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.