1
Enrollment
844
Middle
DISTRICT 787 · STATE 462
SCHOOL COMMUNITY·PLAINFIELD SD 202·NCES 173174005862
Aux Sable Middle School
2001 Wildspring Pkwy, Joliet, IL 60431 · (815) 439-7092 · Kendall County
GRADES 06–08MIDDLE21-SUBURBREGULAR SCHOOL844 STUDENTS
B-
allk12 Grade
Scored higher than 45% of Illinois public middle schools
- BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- CBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public middle schools
Student : Teacher
15.1:1
56 FTE teachers
DISTRICT 14.7:1 · STATE 13.0:1
Free / Reduced Lunch
34%
291 students
DISTRICT 35% · 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 |
|---|---|---|
| Grade 6 | 296 | 35% |
| Grade 7 | 275 | 33% |
| Grade 8 | 273 | 32% |
Student demographics
70%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · 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
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
62.9%
IL avg 51.0% . +14.3pp since 2023
Math
33.4%
IL avg 37.9% . +8.2pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 63 of every 100 students at this school read and write at grade level and about 33 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 14 points since 2023, while math scores are up about 8 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 62.9% | 33.4% |
| 2023-24 | 48.6% | 25.2% |
% 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
47.2%
composite math + reading, all grades
Predicted
51.6%
based on IL schools with similar FRL share
Beats by
-4.4pp
below demographic expectation
What this means: About 47% of students here test proficient in math and reading, compared with the roughly 52% 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 Aux Sable Middle School
Aux Sable Middle School's state test result (47.2% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Aux Sable Middle School this school | 844 | 34.5% | 47.2% |
| Nichols Middle School Evanston | 628 | 34.9% | 62.3% |
| Drauden Point Middle School Plainfield | 658 | 36.0% | 43.1% |
| Big Hollow Middle School Ingleside | 744 | 32.5% | 46.0% |
| Timber Ridge Middle School Plainfield | 885 | 40.1% | 41.3% |
| Plank Junior High Oswego | 595 | 36.8% | 42.2% |
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 Aux Sable Middle School ranks
Among middle schools| Measure | This school | In Illinois | In Kendall County |
|---|---|---|---|
| State test proficiency ranked highest first | 47.2% | #235 of 578 | #3 of 9 |
| Math proficiency ranked highest first | 33.4% | #317 of 640 no change | #3 of 9 ▲ 2 |
| Reading proficiency ranked highest first | 62.9% | #256 of 640 ▲ 51 | #2 of 9 ▲ 2 |
| Enrollment ranked largest first | 844 | #69 of 691 | #3 of 10 |
| Students per teacher ranked fewest first | 15.1:1 | #457 of 558 | #6 of 9 |
| Diversity index ranked most diverse first | 70.4% | #34 of 560 | #1 of 9 |
| Free and reduced lunch ranked highest share first | 34.5% | #427 of 581 | #5 of 9 |
| Enrollment change since 2017-18 ranked steepest decline first | -15.1% | #166 of 440 | #2 of 6 |
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
844
-120 (-12%) vs 2020
-28% since 2010-11, when it was 1,173
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 | 844 | 56 | 15.1:1 | 34% (291) |
| 2023-24 | 848 | 53.5 | 15.8:1 | 38% (319) |
| 2022-23 | 855 | 51.5 | 16.6:1 | 43% (371) |
| 2020-21 | 964 | N/A | N/A | N/A |
| 2017-18 | 994 | 56.8 | 17.5:1 | 33% (330) |
| 2015-16 | 1,009 | 55 | 18.4:1 | 29% (293) |
| 2010-11 | 1,173 | 70 | 16.8:1 | 26% (301) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Aux Sable Middle School.
Since 2017-18: students down 15% (994 to 844); teachers down 1% (56.8 to 56).
About Aux Sable Middle School
Aux Sable Middle School is classified as a middle-grades school. It is located in Joliet, Illinois. The latest federal count shows 844 students in grades 6 through 8. The average for middle schools in Illinois is about 462 students, so this school is 83% bigger than average.
The district for Aux Sable Middle School is Plainfield SD 202, with 30 schools and 24,556 students.
White students are the largest group at Aux Sable Middle School, with 42% of enrollment. The rest of enrollment is 28% Hispanic, 19% Black, 6% multiracial, and 5% Asian. Among all residents of Kendall County, the White share is about 65%. By the diversity index, Aux Sable Middle School comes in at 70%.
Federal staffing data show 56 full-time-equivalent teachers at Aux Sable Middle School and a ratio of 15.1:1. That ratio is over the 13.0:1 average for middle schools in Illinois. Free or reduced-price lunch eligibility covers 34% of students. That is close to the 32% average for public schools in Kendall County.
allk12 grades Aux Sable Middle School a B-. The grade compares the school only with Illinois public middle schools, because each state gives its own test.
Aux Sable Middle School posts an average proficiency rate on state tests of 47.2%, compared with a predicted 51.6%. It is not in the top or bottom 10% of Illinois schools on BeatsExpectations.
Kendall County has about 137,675 residents, and median household income is about $111,601, the share of adults with a bachelor's degree or higher is 37%, and roughly 5% of residents are in poverty. The public schools of Kendall County number 50 and enroll about 29,773.
The school nearest to Aux Sable Middle School is Thomas Jefferson Elementary School, at a distance of about 0.1 miles. Counting only straight-line distance, at least 8 other public schools are within five miles. Aux Sable Middle School places 1st of 9 on proficiency among the closest schools that report scores.
Locale: Suburb: Large. In NCES terms, the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Aux Sable Middle School had 964 students in 2020-21 and 844 in 2024-25, a 12% decrease.
The discussion area below is open to posts about school events, clubs, and volunteer needs. Questions from prospective families are welcome too.
Kendall County at a glance
View full county profilePopulation
137,675
Census ACS
Median income
$111,601
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
50
29,773 students
Quick facts
Related schools
Other schools in Plainfield SD 202
- Plainfield North High SchoolHigh · 2,399 students
- Plainfield South High SchoolHigh · 2,323 students
- Plainfield East High SchoolHigh · 1,825 students
- Plainfield High SchoolHigh · 1,800 students
- John F Kennedy Middle SchoolMiddle · 912 students
- Timber Ridge Middle SchoolMiddle · 885 students
Other schools in Joliet
- Joliet West High SchoolHigh · 3,451 students
- Joliet Central High SchoolHigh · 3,295 students
- Hufford Junior High SchoolMiddle · 1,072 students
- Washington Jr High & Academy PrgmMiddle · 724 students
- Dirksen Junior High SchoolMiddle · 653 students
- Thomas Jefferson Elementary SchoolElementary · 646 students
Nearby schools
- Thomas Jefferson Elementary School0.1 mi · 646
- Plainfield South High School0.7 mi · 2,323
- Charles Reed Elementary School1.1 mi · 641
- Jones Elementary School1.8 mi · 553
- Meadow View Elementary School1.8 mi · 627
- Ridge Elementary School2.7 mi · 481
Frequently asked questions
About Aux Sable Middle SchoolHow many students attend Aux Sable Middle School?
Aux Sable Middle School enrolls approximately 844 students in grades 06-08.
What age range does Aux Sable Middle School serve?
Aux Sable Middle School serves students from grade 06 through grade 08.
How many students per teacher at Aux Sable Middle School?
Approximately 15.1:1 students per teacher at Aux Sable Middle School.
How diverse is Aux Sable Middle School?
Aux Sable Middle School reports a student body of 42% White, 28% Hispanic, 19% Black, 5% Asian, 6% Two or more.
Who oversees Aux Sable Middle School?
Aux Sable Middle School is overseen by Plainfield SD 202 in Kendall County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.