Serving 526 students in grades 5-8, Northbrook School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 17% (which is lower than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 26% (which is lower than the Illinois state average of 30%).
The student-teacher ratio of 14:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 46% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Facts (2026)
- Grades: 5-8
- Enrollment: 526 students
- Student-Teacher Ratio: 14:1
- Minority Enrollment: 46%
- Overall Testing Rank: Bottom 50% in IL
- Math Proficiency: 17% (Btm 50%)
- Reading Proficiency: 26% (Top 50%)
- Science Proficiency: 54% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Overview
Northbrook School's student population of 526 students has stayed relatively flat over five school years.
The teacher population of 38 teachers has grown by 15% over five school years.
Grades Offered
Grades 5-8
Total Students
526 students
Total Classroom Teachers
38 teachers
Year Founded
2025
School Calendar
School Rankings
Northbrook School ranks within the bottom 50% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Northbrook School is 0.55, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1959 out of 3542 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
17%
27%
Reading/Language Arts Test Scores (% Proficient)
26%
30%
Science Test Scores (% Proficient)
54%
50%
Student-Teacher Ratio
14:1
13:1
Hispanic
40%
29%
Black
3%
16%
White
54%
45%
Two or more races
3%
4%
All Ethnic Groups
Eligible for Free Lunch
51%
43%
Eligible for Reduced Lunch
13%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Frequently Asked Questions
What is Northbrook School's ranking?
Northbrook School is ranked #1959 out of 3,542 schools, which ranks it among the bottom 50% of public schools in Illinois.
What percent of students have achieved state testing proficiency in math and reading?
17% of students have achieved math proficiency (compared to the 27% IL state average), while 26% of students have achieved reading proficiency (compared to the 30% IL state average).
How many students attend Northbrook School?
526 students attend Northbrook School.
What is the racial composition of the student body?
54% of Northbrook School students are White, 40% of students are Hispanic, 3% of students are Black, and 3% of students are Two or more races.
What is the student-teacher ratio of Northbrook School?
Northbrook School has a student ration of 14:1, which is higher than the Illinois state average of 13:1.
What grades does Northbrook School offer ?
Northbrook School offers enrollment in grades 5-8
What school district is Northbrook School part of?
Northbrook School is part of Mendota CCSD 289 School District.
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