- Enrollment
- 1,930
- Students per teacher
- 12.3:1
- Resource Index
- 37/100
Middle school (grades 6-8) · Saint Charles, IL
Thompson Middle School
Federal NCES profile for Thompson Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 173717003859
👥 S:T ratio 44
🌟 Gifted program 70
🎓 Counselors 32
📋 Attendance 47
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Thompson Middle School earns 48/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois.
- #9 of 13
- public schools in Saint Charles · Resource Index
- 48
- Resource Index · Typical
- 14.1:1
- students per teacher
- 1,364
- students enrolled
Thompson Middle School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Thompson Middle School ranks #9 of 13 public schools in Saint Charles, IL.
School address
District: St Charles Cusd 303 · Illinois
NCES ID 173717003859 Verify on NCES CCD record →
NCES CCD universe card
School universe 173717003859 · Saint Charles, IL Middle · MID · TRAD
1,364 enr · 14.1:1 · RII 48
Nearest enrollment peer: St Charles East High School (1,930 students)
Resource Investment Index #9 of 13 public schools in Saint Charles. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
Thompson Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- St Charles Eas
St Charles East High School
1,930 students
- St Charles Nor
St Charles North High School
1,903 students
- This school
Thompson Middle School
1,364 students
- Wredling Middl
Wredling Middle School
1,289 students
- Wild Rose Elem 535
Wild Rose Elem School
535 students
- Ferson Creek S 533
Ferson Creek School
533 students
What this shows Thompson Middle School reports 1,364 students on the CCD universe file.
How Thompson Middle School compares
Thompson 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 | 14.1:1 | ▲ 1% | 14:1 | 15.7:1 |
| Enrollment | 1,364 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.1:1
Leaner classes than 56% of US schools, a middle-of-the-pack class size.
1,364
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
14.1:1
students per teacher
- 1% above state mean
Top 58% in Illinois - lower ratio than 42% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
21.2%
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
$21,044
per pupil, district-wide
- above Illinois avg of $18,196
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 341 students, the combined health-and-guidance staffing load for this school.
Discipline context
57
in-school suspensions + 3 out-of-school
Suspension rate: 4.2 per 100 students. Combined in-school and out-of-school rate: 4.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 73.1%
Hispanic or Latino 14.1%
Asian 5.6%
Two or More 4.7%
African American 1.8%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 73.1% of enrollment.
Student-body diversity index 44.0/100
Simpson diversity index - at 44.0, Thompson Middle School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for St Charles Cusd 303, which includes Thompson Middle School.
$21,044
Per student
+16%
vs Illinois
Avg $18,196
+19%
vs U.S.
Avg $17,658
Revenue mix
Local 69.8%
State 26.3%
Federal 4.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Thompson Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| St Charles East High School | Larger | No free-lunch data | Lower S:T ratio |
| St Charles North High School | Larger | No free-lunch data | Similar S:T ratio |
| Wredling Middle School | Similar size | No free-lunch data | Similar S:T ratio |
| Wild Rose Elem School | Smaller | No free-lunch data | Similar S:T ratio |
| Ferson Creek School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Thompson Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,903
- Students per teacher
- 14:1
- Resource Index
- 35/100
- Enrollment
- 1,289
- Students per teacher
- 12.9:1
- Resource Index
- 50/100
- Enrollment
- 535
- Students per teacher
- 15.3:1
- Resource Index
- 55/100
- Enrollment
- 533
- Students per teacher
- 13:1
- Resource Index
- 53/100
Similar middle schools in Saint Charles
1 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,364 students)
Similar student-teacher ratio (~14.1:1)
Frequently asked questions about Thompson Middle School
How many students attend Thompson Middle School?
Thompson Middle School has 1,364 students enrolled. It is a middle school in Saint Charles, IL.
What is the student-teacher ratio at Thompson Middle School?
The student-teacher ratio at Thompson Middle School is 14.1:1, which is 1% higher than the Illinois average of 14:1 and 10% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Thompson Middle School?
The largest demographic group at Thompson Middle School is White at 73.1% of enrollment, in Saint Charles, IL.
What is the Resource Investment Index for Thompson Middle School?
Thompson Middle School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Thompson Middle School rank among public schools in Saint Charles?
By Resource Investment Index, Thompson Middle School ranks #9 of 13 public schools in Saint Charles, 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 Saint Charles on the city page.
What other schools are in St Charles Cusd 303?
Besides Thompson Middle School, St Charles Cusd 303 also operates St Charles East High School (1,930 students), St Charles North High School (1,903 students), and Wredling Middle School (1,289 students). See the St Charles Cusd 303 district page for the complete list.
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, the data changelog, or report a data error. Data current as of August 2026.