Northbrook School
🇺🇸 Official data · 2025Mendota, Illinois 61342 · Mendota CCSD 289
#351 of 670 middle schools in Illinois
#9408 of 15,369 nationally
About Northbrook School
Northbrook School is a public middle located in Mendota, in the Mendota CCSD 289 school district of Illinois, United States. It caters for Grades 5–8. In 2025 it enrolled 526 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 41.9 out of 100, placing it in the lower 50% of middle schools in United States and 351st of 670 ranked middle schools in Illinois. Its strongest component is students per teacher (61th percentile), and its weakest is math proficiency (34th percentile).
Other published figures: enrollment 526.
There are 4 schools in Mendota; Northbrook School ranks 2nd of 4 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)34%
- Reading proficiency (30%)42%
- Community advantage (fewer free/reduced-price lunch) (25%)58.6%
- Students per teacher (15%)13.8
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Northbrook School by the official sources.
- Enrollment
- 526
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 58.6%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 13.8
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 42%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 34%
- Share of tested students proficient or above (all students, all grades).
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Schools near Northbrook School
Closest schools by straight-line distance, with their Success Index (US).
Lincoln Elem School
Mendota · Public elementary · Grades 2–4
319 students · 1.3 km away
Blackstone Elem School
Mendota · Public elementary · Grades K–1
197 students · 1.6 km away
Mendota Twp High School
Mendota · Public high · Grades 9–12
493 students · 1.8 km away
Allen School School
La Moille · Public elementary · Grades K–6
96 students · 14 km away
La Moille Jr/Sr High School
La Moille · Public high · Grades 7–12
86 students · 14 km away
Similar schools
Public middle schools in Illinois with a comparable Enrollment.
Franklin Middle School
Wheaton · Public middle · Grades 6–8
525 students
Orland Jr High School
Orland Park · Public middle · Grades 6–8
524 students
Franklin Park Middle School
Salem · Public middle · Grades 4–8
528 students
Carl Sandburg Middle School
Mundelein · Public middle · Grades 6–8
529 students
Washington Jr High School
Rock Island · Public middle · Grades 7–8
529 students
Canton Middle School
Streamwood · Public middle · Grades 7–8
531 students
Frequently asked questions
Is Northbrook School a good school?
Northbrook School has a Success Index (US) of 41.9 out of 100 (Lower 50% of middle schools in United States) and ranks #351 of 670 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Northbrook School rank in Illinois?
Northbrook School ranks #351 of 670 middle schools in Illinois and #9408 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend Northbrook School?
Northbrook School had 526 students in 2025.
Is Northbrook School a elementary school or a high school?
Northbrook School is classified as a middle covering Grades 5–8. It is a public school.
What other schools are near Northbrook School?
There are 5 schools within 15 km of Northbrook School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.