Enrollment
552
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Rockton, IL
Stephen Mack Middle School
Federal NCES profile for Stephen Mack Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 173454003624
👥 S:T ratio 30
🌟 Gifted program 30
📋 Attendance 40
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Stephen Mack Middle School earns 33/100 on the Resource Investment Index, with class sizes larger than 90% of Illinois schools.
- #4 of 4
- public schools in Rockton · Resource Index
- 33
- Resource Index · Typical
- 17.6:1
- large classes for Illinois
- 552
- students enrolled
Stephen Mack Middle School has class sizes larger than 90% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Stephen Mack Middle School ranks #4 of 4 public schools in Rockton, IL.
School address
District: Rockton Sd 140 · Illinois
NCES ID 173454003624 Verify on NCES CCD record →
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
17.6:1
vs 14:1 Illinois avg
+26% vs state
Student-teacher ratio in context
How Stephen Mack Middle School compares with Illinois and U.S. medians
What stands out at Stephen Mack Middle School
Stephen Mack Middle School is a mid-sized middle school in Rockton, Illinois, enrolling 552 students.
Class loads run heavy: 17.6:1 is larger than about 90% of Illinois schools and 26% above the 14:1 state mean, so each teacher carries more students than is typical.
Enrollment of 552 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by White (75%) and Hispanic or Latino (13%) (diversity index 42/100).
Attendance runs somewhat below the norm, with 24.1% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Rockton Sd 140 spends $13,046 per pupil, 23% below the Illinois average, a leaner-resourced district than most.
Rockton Sd 140 also operates Rockton Elem School (518 students) and Whitman Post Elem School (509 students) alongside Stephen Mack Middle School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Stephen Mack Middle School compares
Stephen Mack Middle School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.6:1 | ▲ 26% | 14:1 | 15.7:1 |
| Enrollment | 552 | top 24% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.6:1
Leaner classes than 27% of US schools, heavier class loads than most.
552
Bigger than 68% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
17.6:1
students per teacher
- 26% above state mean
Top 90% in Illinois - lower ratio than 10% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
24.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$13,046
per pupil, district-wide
- below Illinois avg of $17,042
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
38
in-school suspensions + 16 out-of-school
Suspension rate: 6.9 per 100 students. Combined in-school and out-of-school rate: 9.8 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 74.8%
Hispanic or Latino 12.7%
Two or More 7.2%
African American 4.2%
Asian 1.1%
Largest group: White at 74.8% of enrollment.
Student-body diversity index 41.7/100
Simpson diversity index - at 41.7, Stephen Mack Middle School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Rockton Sd 140, which includes Stephen Mack Middle School.
$13,046
Per student
-23%
vs Illinois
Avg $17,042
-21%
vs U.S.
Avg $16,593
Revenue mix
Local 45.0%
State 45.6%
Federal 9.4%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Stephen Mack Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Rockton Elem School | Similar size | No free-lunch data | Lower S:T ratio |
| Whitman Post Elem School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Stephen Mack Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 518
- Students per teacher
- 15.6:1
- Resource Index
- 35/100
- Enrollment
- 509
- Students per teacher
- 15.9:1
- Resource Index
- 35/100
Next steps
Verify locally before acting on Stephen Mack Middle School's federal record.
- Compare Stephen Mack Middle School against another school. Compare schools
- Rockton Sd 140's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Stephen Mack Middle School
How many students attend Stephen Mack Middle School?
Stephen Mack Middle School has 552 students enrolled. It is a middle school in Rockton, IL.
What is the student-teacher ratio at Stephen Mack Middle School?
The student-teacher ratio at Stephen Mack Middle School is 17.6:1, which is 26% higher than the Illinois average of 14:1 and 12% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Stephen Mack Middle School?
The largest demographic group at Stephen Mack Middle School is White at 74.8% of enrollment, in Rockton, IL.
What is the Resource Investment Index for Stephen Mack Middle School?
Stephen Mack Middle School has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Stephen Mack Middle School rank among public schools in Rockton?
By Resource Investment Index, Stephen Mack Middle School ranks #4 of 4 public schools in Rockton, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Rockton on the city page.
Is Stephen Mack Middle School a good school?
Stephen Mack Middle School earns 33/100 on the Resource Investment Index, with class sizes larger than 90% of Illinois schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Rockton Sd 140?
Besides Stephen Mack Middle School, Rockton Sd 140 also operates Rockton Elem School (518 students) and Whitman Post Elem School (509 students). See the Rockton Sd 140 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.