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What's the best and worst thing about the food at Northbrook School?
Community prompt from u/allk12. Replies below.
Enrollment
526
Middle
DISTRICT 347 · STATE 462
SCHOOL COMMUNITY·MENDOTA CCSD 289·NCES 172562002773
Northbrook School
1804 Guiles Ave, Mendota, IL 61342 · (815) 539-6237 · LaSalle County
GRADES 05–08MIDDLE32-TOWNTITLE IREGULAR SCHOOL526 STUDENTS
Student : Teacher
13.8:1
38 FTE teachers
DISTRICT 12.4:1 · STATE 13.0:1
Free / Reduced Lunch
59%
308 students
DISTRICT 61% · STATE 56%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 71 | 13% |
| Kindergarten | 2 | 0% |
| Grade 5 | 113 | 21% |
| Grade 6 | 92 | 17% |
| Grade 7 | 128 | 24% |
| Grade 8 | 120 | 23% |
Student demographics
54%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 55% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Mendota CCSD 289. Attendance zones can vary; confirm enrollment with the district.
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
55.8%
IL avg 51.0% . +16.4pp since 2023
Math
28.1%
IL avg 37.9% . +10.6pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 56 of every 100 students at this school read and write at grade level and about 28 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 16 points since 2023, while math scores are up about 11 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 55.8% | 28.1% |
| 2023-24 | 39.4% | 17.5% |
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
40.1%
composite math + reading, all grades
Predicted
37.7%
based on IL schools with similar FRL share
Beats by
+2.4pp
above demographic expectation
What this means: About 40% of students here test proficient in math and reading, compared with the roughly 38% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Northbrook School
Northbrook School's state test result (40.1% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Northbrook School this school | 526 | 58.6% | 40.1% |
| Challand Middle School Sterling | 726 | 62.8% | 32.0% |
| Gavin South Middle School Ingleside | 325 | 58.2% | 35.8% |
| Algonquin Middle School Algonquin | 370 | 56.5% | 49.0% |
| Marengo Comm Middle School Marengo | 342 | 55.0% | 44.4% |
| Simmons Middle School Oak Lawn | 725 | 61.2% | 42.0% |
Matched among Illinois middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Northbrook School ranks
Among middle schools| Measure | This school | In Illinois | In LaSalle County |
|---|---|---|---|
| State test proficiency ranked highest first | 40.1% | #323 of 578 | #5 of 9 |
| Math proficiency ranked highest first | 28.1% | #380 of 640 ▲ 49 | #5 of 9 no change |
| Reading proficiency ranked highest first | 55.8% | #337 of 640 ▲ 67 | #4 of 9 ▲ 1 |
| Enrollment ranked largest first | 526 | #265 of 691 | #2 of 9 |
| Students per teacher ranked fewest first | 13.8:1 | #370 of 558 | #6 of 7 |
| Diversity index ranked most diverse first | 54.3% | #223 of 560 | #3 of 7 |
| Free and reduced lunch ranked highest share first | 58.6% | #194 of 581 | #3 of 9 |
| Enrollment change since 2017-18 ranked steepest decline first | -6.6% | #318 of 440 | #5 of 7 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
526
+15 (+3%) vs 2020
+121% since 1990-91, when it was 238
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 526 | 38 | 13.8:1 | 59% (308) |
| 2023-24 | 481 | 36 | 13.4:1 | 64% (307) |
| 2022-23 | 508 | 36.5 | 13.9:1 | 59% (302) |
| 2020-21 | 511 | N/A | N/A | N/A |
| 2017-18 | 563 | 34 | 16.6:1 | 55% (312) |
| 2015-16 | 632 | 36 | 17.6:1 | 53% (336) |
| 2010-11 | 594 | 38 | 15.6:1 | 54% (322) |
| 2000-01 | 591 | 39 | 15.2:1 | N/A |
| 1990-91 | 238 | 15 | 15.9:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Northbrook School.
Since 2017-18: students down 7% (563 to 526); teachers up 12% (34 to 38).
About Northbrook School
Northbrook School is a medium-sized middle-grades school with its address in Mendota, Illinois. A total of 526 students attend the school, which covers grades 5 through 8.
A total of 3 schools make up Mendota CCSD 289, with 1,042 students enrolled.
White students make up a majority at Northbrook School, at 54%. The remaining students are 40% Hispanic, 3% multiracial, and 2% Black. Census figures show LaSalle County is about 86% White. Pick two students at random and there is a 54% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Teachers at Northbrook School total 38 full-time equivalents, and the ratio is 13.8:1. That is 0.9 students per teacher above the 13.0:1 average for middle schools in Illinois. Federal records put free or reduced-price lunch eligibility at 59%.
Schools in Illinois with a similar free or reduced-price lunch share are predicted to score about 37.7%. Northbrook School scores 40.1%.
LaSalle County census figures show that the median household income is $73,045, a bachelor's degree or higher is held by about 21% of adults, and the poverty rate is about 11%. LaSalle County is home to 54 public schools and about 14,523 public school students.
Nearby, Lincoln Elementary School is about 0.8 miles away. There are 3 more public schools inside five miles. Local comparison: Northbrook School ranks 2nd of 7 nearby schools, at 40.1% versus a 31.9% average.
NCES describes the area around Northbrook School as Town: Distant, meaning in a town some distance from an urbanized area.
Enrollment is up 3% from 2020-21, when Northbrook School had 511 students, to 2024-25, when it had 526.
The allk12 site hosts a discussion page for Northbrook School covering things like sports tryouts, band and choir, and theater. Reviews and ratings from people who know the school are welcome.
LaSalle County at a glance
View full county profilePopulation
108,714
Census ACS
Median income
$73,045
Household, ACS
Bachelor's+
21%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
54
14,523 students
Quick facts
Related schools
Other schools in Mendota CCSD 289
- Lincoln Elementary SchoolElementary · 319 students
- Blackstone Elementary SchoolElementary · 197 students
Other schools in Mendota
- Mendota Twp High SchoolHigh · 493 students
- Lincoln Elementary SchoolElementary · 319 students
- Blackstone Elementary SchoolElementary · 197 students
Nearby schools
- Lincoln Elementary School0.8 mi · 319
- Blackstone Elementary School1.0 mi · 197
- Mendota Twp High School1.1 mi · 493
- Allen School School8.6 mi · 96
- La Moille Jr/Sr High School8.7 mi · 86
- Earlville Elementary School10.2 mi · 253
Frequently asked questions
About Northbrook SchoolWhat is the total enrollment at Northbrook School?
Northbrook School enrolls approximately 526 students in grades 05-08.
What age range does Northbrook School serve?
Northbrook School serves students from grade 05 through grade 08.
What is the student-teacher ratio at Northbrook School?
The student-to-teacher ratio at Northbrook School is approximately 13.8:1 (38 FTE teachers).
How diverse is Northbrook School?
Northbrook School reports a student body of 54% White, 40% Hispanic, 2% Black, 3% Two or more.
What district is Northbrook School in?
Northbrook School is part of Mendota CCSD 289.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.