Enrollment
254
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Wilmington, IL
Wilmington Middle School
Federal NCES profile for Wilmington Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 174263004283
👥 S:T ratio 52
🌟 Gifted program 30
📋 Attendance 54
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Wilmington Middle School earns 45/100 on the Resource Investment Index, with class sizes smaller than 70% of Illinois schools.
- #2 of 4
- public schools in Wilmington · Resource Index
- 45
- Resource Index · Typical
- 12.1:1
- small classes for Illinois
- 254
- students enrolled
Wilmington Middle School has class sizes smaller than 70% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Wilmington Middle School ranks #2 of 4 public schools in Wilmington, IL.
School address
District: Wilmington Cusd 209u · Illinois
NCES ID 174263004283 Verify on NCES CCD record →
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
12.1:1
vs 14:1 Illinois avg
-14% vs state
Student-teacher ratio in context
How Wilmington Middle School compares with Illinois and U.S. medians
What stands out at Wilmington Middle School
Wilmington Middle School is a mid-sized middle school in Wilmington, Illinois, enrolling 254 students.
Class sizes run a bit leaner than typical: 12.1:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 254 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is predominantly White (86% of enrollment) (diversity index 26/100).
Attendance runs somewhat below the norm, with 18.5% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Wilmington Cusd 209u spends $12,001 per pupil, 30% below the Illinois average, a leaner-resourced district than most.
Its district draws 18.9% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Wilmington Cusd 209u also operates Wilmington High School (432 students) and L J Stevens Intermediate School (353 students) alongside Wilmington 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 Wilmington Middle School compares
Wilmington 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 | 12.1:1 | ▼ 14% | 14:1 | 15.7:1 |
| Enrollment | 254 | top 73% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.1:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
254
Bigger than 26% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
12.1:1
students per teacher
- 14% below state mean
Top 30% in Illinois - lower ratio than 70% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
18.5%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$12,001
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
0
in-school suspensions + 23 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 9.1 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 85.8%
Hispanic or Latino 8.7%
Two or More 3.5%
Asian 2.0%
Largest group: White at 85.8% of enrollment.
Student-body diversity index 25.5/100
Simpson diversity index - at 25.5, Wilmington Middle School is less mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Wilmington Cusd 209u, which includes Wilmington Middle School.
$12,001
Per student
-30%
vs Illinois
Avg $17,042
-28%
vs U.S.
Avg $16,593
Revenue mix
Local 60.7%
State 20.4%
Federal 18.9%
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 Wilmington Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Wilmington High School | Larger | No free-lunch data | Higher S:T ratio |
| L J Stevens Intermediate School | Larger | No free-lunch data | Higher S:T ratio |
| Bruning Elem School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Wilmington Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 432
- Students per teacher
- 14.9:1
- Resource Index
- 43/100
- Enrollment
- 353
- Students per teacher
- 15.3:1
- Resource Index
- 46/100
- Enrollment
- 222
- Students per teacher
- 17.1:1
- Resource Index
- 40/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~254 students)
Next steps
Verify locally before acting on Wilmington Middle School's federal record.
- Compare Wilmington Middle School against another school. Compare schools
- Wilmington Cusd 209u'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 Wilmington Middle School
How many students attend Wilmington Middle School?
Wilmington Middle School has 254 students enrolled. It is a middle school in Wilmington, IL.
What is the student-teacher ratio at Wilmington Middle School?
The student-teacher ratio at Wilmington Middle School is 12.1:1, which is 14% lower than the Illinois average of 14:1 and 23% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Wilmington Middle School?
The largest demographic group at Wilmington Middle School is White at 85.8% of enrollment, in Wilmington, IL.
What is the Resource Investment Index for Wilmington Middle School?
Wilmington Middle School has a Resource Investment Index of 45/100 (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 Wilmington Middle School rank among public schools in Wilmington?
By Resource Investment Index, Wilmington Middle School ranks #2 of 4 public schools in Wilmington, 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 Wilmington on the city page.
Is Wilmington Middle School a good school?
Wilmington Middle School earns 45/100 on the Resource Investment Index, with class sizes smaller than 70% 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 Wilmington Cusd 209u?
Besides Wilmington Middle School, Wilmington Cusd 209u also operates Wilmington High School (432 students), L J Stevens Intermediate School (353 students), and Bruning Elem School (222 students). See the Wilmington Cusd 209u 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.