Serving 481 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 13:1 is equal to the Illinois state level of 13:1.
Minority enrollment is 47% 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: 481 students
- Student-Teacher Ratio: 13:1
- Minority Enrollment: 47%
- 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 481 students has declined by 5% over five school years.
The teacher population of 36 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 5-8
Total Students
481 students
Gender %
Total Classroom Teachers
36 teachers
Year Founded
2025
Last Day of School
Fri. May 1, 2026
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 0.56, 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
13:1
13:1
American Indian
1%
n/a
Asian
n/a
6%
Hispanic
40%
28%
Black
3%
17%
White
53%
45%
Hawaiian
n/a
n/a
Two or more races
3%
4%
All Ethnic Groups
Eligible for Free Lunch
56%
43%
Eligible for Reduced Lunch
14%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Profile last updated: 02/09/2025
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?
481 students attend Northbrook School.
What is the racial composition of the student body?
53% of Northbrook School students are White, 40% of students are Hispanic, 3% of students are Black, 3% of students are Two or more races, and 1% of students are American Indian.
What is the student-teacher ratio of Northbrook School?
Northbrook School has a student ration of 13:1, which is equal to 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 Community Consolidated School District 289.
School Reviews
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