Northbrook School

1804 Guiles Ave, Mendota, IL 61342

CSchola Grade
Grades
5–8
Middle
Students
526
Enrolled 2024–25
Students per teacher
13.8 : 1
Full-time teachers
District
Mendota CCSD 289
LaSalle County

Schola Grade C · Average

Letter grade (A–F) · compared with 688 Illinois middle schools · How we grade
Test scores26% proficient in math & reading
43rdpercentile
Equity17% of low-income students proficient
48thpercentile
Attendance24% chronically absent
41stpercentile
Class size13.8 students per teacher
31stpercentile

Percentiles compare this school with other Illinois middle schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Northbrook School

Northbrook School is a public middle school in Mendota, Illinois, serving grades 5–8. It is part of Mendota CCSD 289. The school is located in a town in LaSalle County.

In the 2024–25 school year, 526 students were enrolled, with about 13.8 students for every full-time teacher. That ratio is larger than the typical Illinois middle school (12.7 students per teacher). Its Schola Grade is C (average), compared with 688 Illinois middle schools.

Grades & enrollment

Students per grade, 2024–25Grades 5–8

Location & nearby schools

1804 Guiles Ave
Mendota, IL 61342
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School details

Type
Public School · What this means
Level
Middle
Grades offered
5–8
Enrollment (2024–25)
526 students
Students per teacher
13.8 to 1
Charter school
No
Magnet school
No
Locale
Town — Distant
School district
Mendota CCSD 289
County
LaSalle County
NCES school ID
172562002773

Schools near Northbrook School

All 5 schools in Mendota →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.