- Enrollment
- 2,399
- Students per teacher
- 18:1
- Resource Index
- 27/100
Middle school (grades 6-8) · Plainfield, IL
Timber Ridge Middle School
Federal NCES profile for Timber Ridge Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 173174001873
👥 S:T ratio 32
🌟 Gifted program 30
📋 Attendance 29
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Timber Ridge Middle School earns 30/100 on the Resource Investment Index, with class sizes larger than 87% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #7 of 8
- middle schools in Plainfield · Resource Index
- 30
- Resource Index · Lower
- 17:1
- large classes for Illinois
- 885
- students enrolled
Timber Ridge Middle School has class sizes larger than 87% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Timber Ridge Middle School ranks #7 of 8 middle schools in Plainfield, IL.
School address
District: Plainfield Sd 202 · Illinois
NCES ID 173174001873 Verify on NCES CCD record →
NCES CCD universe card
School universe 173174001873 · Plainfield, IL Middle · MID · TRAD
885 enr · 17:1 · RII 30
Nearest enrollment peer: Plainfield North High School (2,399 students)
Resource Investment Index #7 of 8 middle schools in Plainfield. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
Timber Ridge Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Plainfield Nor
Plainfield North High School
2,399 students
- Plainfield Sou
Plainfield South High School
2,323 students
- Plainfield Eas
Plainfield East High School
1,825 students
- Plainfield Hig
Plainfield High School
1,800 students
- John F Kennedy 912
John F Kennedy Middle Sch
912 students
- This school 885
Timber Ridge Middle School
885 students
What this shows Timber Ridge Middle School reports 885 students on the CCD universe file.
How Timber Ridge Middle School compares
Timber Ridge 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 | 17:1 | ▲ 21% | 14:1 | 15.7:1 |
| Enrollment | 885 | top 9% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17:1
Leaner classes than 30% of US schools, heavier class loads than most.
885
Bigger than 88% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
17:1
students per teacher
- 21% above state mean
Top 87% in Illinois - lower ratio than 13% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
28.5%
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
$15,896
per pupil, district-wide
- below Illinois avg of $18,196
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
104
in-school suspensions + 46 out-of-school
Suspension rate: 11.8 per 100 students. Combined in-school and out-of-school rate: 16.9 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Student demographics
White 45.2%
Hispanic or Latino 36.2%
African American 11.0%
Two or More 4.5%
Asian 2.7%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 45.2% of enrollment.
Student-body diversity index 65.0/100
Simpson diversity index - at 65.0, Timber Ridge Middle School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Plainfield Sd 202, which includes Timber Ridge Middle School.
$15,896
Per student
-13%
vs Illinois
Avg $18,196
-10%
vs U.S.
Avg $17,658
Revenue mix
Local 50.4%
State 43.1%
Federal 6.6%
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 Timber Ridge Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Plainfield North High School | Larger | No free-lunch data | Similar S:T ratio |
| Plainfield South High School | Larger | No free-lunch data | Similar S:T ratio |
| Plainfield East High School | Larger | No free-lunch data | Lower S:T ratio |
| Plainfield High School | Larger | No free-lunch data | Lower S:T ratio |
| John F Kennedy Middle Sch | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Timber Ridge Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,323
- Students per teacher
- 17:1
- Resource Index
- 32/100
- Enrollment
- 1,825
- Students per teacher
- 15.1:1
- Resource Index
- 29/100
- Enrollment
- 1,800
- Students per teacher
- 14.8:1
- Resource Index
- 28/100
- Enrollment
- 912
- Students per teacher
- 16:1
- Resource Index
- 35/100
Similar middle schools in Plainfield
6 comparable middle schools (grades 6-8) serving the same city.
John F Kennedy Middle Sch
Standard public school
912 students 16:1 students per teacher
Troy Middle School
Standard public school
881 students 12.8:1 students per teacher
Richard Ira Jones Middle School
Standard public school
851 students 16.1:1 students per teacher
Heritage Grove Middle School
Standard public school
841 students 15:1 students per teacher
Murphy Junior High School
Standard public school
700 students 14.3:1 students per teacher
Drauden Point Middle School
Standard public school
658 students 14:1 students per teacher
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 (~885 students)
Frequently asked questions about Timber Ridge Middle School
How many students attend Timber Ridge Middle School?
Timber Ridge Middle School has 885 students enrolled. It is a middle school in Plainfield, IL.
What is the student-teacher ratio at Timber Ridge Middle School?
The student-teacher ratio at Timber Ridge Middle School is 17:1, which is 21% higher than the Illinois average of 14:1 and 8% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Timber Ridge Middle School?
The largest demographic group at Timber Ridge Middle School is White at 45.2% of enrollment, in Plainfield, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.0/100.
What is the Resource Investment Index for Timber Ridge Middle School?
Timber Ridge Middle School has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Timber Ridge Middle School rank among middle schools in Plainfield?
By Resource Investment Index, Timber Ridge Middle School ranks #7 of 8 middle schools in Plainfield, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Plainfield on the city page.
What other schools are in Plainfield Sd 202?
Besides Timber Ridge Middle School, Plainfield Sd 202 also operates Plainfield North High School (2,399 students), Plainfield South High School (2,323 students), and Plainfield East High School (1,825 students). See the Plainfield Sd 202 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.