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SCHOOL COMMUNITY·ROCKTON SD 140·NCES 173454003624

Stephen Mack Middle School

11810 Old River Rd, Rockton, IL 61072 · (815) 624-2611 · Winnebago County
GRADES 06–08MIDDLE23-SUBURBREGULAR SCHOOL552 STUDENTS
Enrollment
552
Middle
DISTRICT 526 · STATE 462
Student : Teacher
16.8:1
33 FTE teachers
DISTRICT 16.1:1 · STATE 13.0:1
Free / Reduced Lunch
30%
164 students
DISTRICT 33% · 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

GradeStudentsShare
Grade 620437%
Grade 716229%
Grade 818634%
Student demographics
42%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 41% · STATE 69% · US 70%
White
41375%
DISTRICT 75% · STATE 45% · US 43%
Hispanic
7013%
DISTRICT 13% · STATE 29% · US 30%
Black
234%
DISTRICT 4% · STATE 16% · US 15%
Asian
61%
DISTRICT 1% · STATE 6% · US 6%
Two+
407%
DISTRICT 6% · STATE 5% · US 5%
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
Male
28852%
Female
26448%

School pathway

Feeds from
Whitman Post Elementary School03–05
Based on grade levels within Rockton SD 140. Attendance zones can vary; confirm enrollment with the district.

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
77.2%
IL avg 51.0% . +0.4pp since 2023
Math
45.7%
IL avg 37.9% . +9.9pp since 2023

What this means: On the IAR + ISA, Illinois's statewide test, about 77 of every 100 students at this school read and write at grade level and about 46 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores have held steady since 2023, while math scores are up about 10 points.

IAR + ISA results by year

School yearEnglish Language ArtsMath
2024-2577.2%45.7%
2023-2476.8%35.8%
% 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 · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
61.4%
composite math + reading, all grades
Predicted
54.4%
based on IL schools with similar FRL share
Beats by
+7.1pp
above demographic expectation

What this means: About 61% of students here test proficient in math and reading, compared with the roughly 54% 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 Stephen Mack Middle School

Stephen Mack Middle School's state test result (61.4% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Stephen Mack Middle School this school55229.7%61.4%
Roscoe Middle School
Roscoe
59631.2%61.7%
Oak Prairie Jr High School
Homer Glen
46028.9%66.4%
Manteno Middle School
Manteno
52033.8%51.7%
Coal City Middle School
Coal City
45431.1%67.5%
Richard F Bernotas Middle School
Crystal Lake
73728.0%46.6%
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 Stephen Mack Middle School ranks

Among middle schools
MeasureThis schoolIn IllinoisIn Winnebago County
State test proficiency
ranked highest first
61.4%#82 of 578#4 of 15
Math proficiency
ranked highest first
45.7%#184 of 640
▲ 2
#4 of 15
no change
Reading proficiency
ranked highest first
77.2%#109 of 640
▼ 62
#3 of 15
▼ 1
Enrollment
ranked largest first
552#249 of 691#8 of 16
Students per teacher
ranked fewest first
16.8:1#517 of 558#7 of 12
Diversity index
ranked most diverse first
41.7%#326 of 560#9 of 13
Free and reduced lunch
ranked highest share first
29.7%#462 of 581#14 of 15
Enrollment change since 2017-18
ranked steepest decline first
-0.9%#428 of 440#7 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 2024-25
Enrollment
552
+48 (+10%) vs 2020
+79% since 1990-91, when it was 309
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2555232.816.8:130% (164)
2023-245313316.1:133% (173)
2022-2354731.417.4:130% (165)
2020-21504N/AN/AN/A
2017-1855731.417.7:134% (192)
2015-165293017.6:132% (171)
2010-115343415.7:124% (127)
2000-015023315.2:1N/A
1990-913091520.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Stephen Mack Middle School.

Since 2017-18: students down 1% (557 to 552); teachers up 5% (31.4 to 32.8).

About Stephen Mack Middle School

Stephen Mack Middle School is a medium-sized middle school serving families in Rockton, Illinois. It serves 552 students in grades 6 through 8.

Stephen Mack Middle School is one school in Rockton SD 140, a system of 3 schools with 1,579 students.

Roughly 75% of students at Stephen Mack Middle School are White. Enrollment also includes 13% Hispanic, 7% multiracial, and 4% Black. Among people living in Winnebago County, the White share is about 66%. Stephen Mack Middle School's diversity index is 42%, against a US figure of 70%.

The school employs the equivalent of 32.8 full-time teachers, for a ratio of 16.8:1. That is 3.8 students per teacher above the 13.0:1 average for middle schools in Illinois. The free or reduced-price lunch rate at Stephen Mack Middle School is 30%. That rate is below the 61% average among public schools in Winnebago County.

Stephen Mack Middle School's average proficiency rate on state tests of 61.4% is 7.1 points above the 54.4% the model predicts from its lunch-eligibility share.

Census Bureau estimates for Winnebago County show that the median household income is $65,837, roughly 25% of adults have a four-year degree or more, and the share of residents below the poverty line is 11%. There are 94 public schools in Winnebago County, enrolling about 44,103 students in all.

Whitman Post Elementary School is located about 1.7 miles from Stephen Mack Middle School. Around the school, at least 8 other public schools are within five miles. In a group of 8 nearby schools with scores, Stephen Mack Middle School ranks 4th on average proficiency.

The school's setting, by NCES definition, is Suburb: Small: in a suburban area outside a principal city, within an urbanized area with a population under 100,000.

Over 4 years, Stephen Mack Middle School's enrollment grew 10%, to 552.

Parents and students can post about sports schedules, lunch menus, and spirit week at Stephen Mack Middle School. Questions from prospective families are welcome too.

Winnebago County at a glance

View full county profile
Population
283,292
Census ACS
Median income
$65,837
Household, ACS
Bachelor's+
25%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
94
44,103 students

Quick facts

School name
Stephen Mack Middle School
District
Rockton SD 140
Address
11810 Old River Rd, Rockton, IL 61072
Phone
(815) 624-2611
County
Winnebago County
Level
Middle
Grade range
06–08
Total enrollment
552
Teachers (FTE)
33
Student–teacher ratio
16.8:1
Free and reduced lunch
164 (30%)
Locale
23-Suburb: Small
NCES ID
173454003624
Charter school
No
Virtual school
No

Related schools

Other schools in Rockton SD 140
Other schools in Rockton
Nearby schools

Frequently asked questions

About Stephen Mack Middle School
How many students attend Stephen Mack Middle School?
Stephen Mack Middle School enrolls approximately 552 students in grades 06-08.
What grades does Stephen Mack Middle School serve?
Stephen Mack Middle School serves grades 06-08.
What is the student-teacher ratio at Stephen Mack Middle School?
The student-to-teacher ratio at Stephen Mack Middle School is approximately 16.8:1 (33 FTE teachers).
What is the racial breakdown of students at Stephen Mack Middle School?
At Stephen Mack Middle School, the student body is approximately 75% White, 13% Hispanic, 4% Black, 1% Asian, 7% Two or more.
Who oversees Stephen Mack Middle School?
Stephen Mack Middle School is overseen by Rockton SD 140 in Winnebago County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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