Enrollment
885
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Plainfield, IL
Federal NCES profile for Timber Ridge Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
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.
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.
NCES ID 173174001873 Verify on NCES CCD record →
Enrollment
885
Illinois · 2024-25 NCES data
Teachers (FTE)
52.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 14:1 Illinois avg
+21% vs state
How Timber Ridge Middle School compares with Illinois and U.S. medians
Slightly above state median
16.9:1 - 2.9 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Timber Ridge Middle School is a large middle school in Plainfield, Illinois, enrolling 885 students.
Class loads run heavy: 16.9:1 is larger than about 87% of Illinois schools and 21% above the 14:1 state mean, so each teacher carries more students than is typical.
By headcount it is one of the larger campuses in Illinois, bigger than 91% of state schools at 885 students.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by White (45%) and Hispanic or Latino (36%), more mixed than most schools in the state (diversity index 65/100).
Chronic absenteeism is elevated: 28.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Plainfield's middle schools, it stands alongside John F Kennedy Middle Sch (912 students): Timber Ridge Middle School is smaller than that campus by headcount and runs heavier classes (16.9:1 vs 15.9:1).
Plainfield Sd 202 also operates Plainfield North High School (2,399 students) and Plainfield South High School (2,323 students) alongside Timber Ridge 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
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 | 16.9:1 | ▲ 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
Largest group: White at 45.2% of enrollment.
Simpson diversity index - at 65.0, Timber Ridge Middle School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Plainfield Sd 202, which includes Timber Ridge Middle School.
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.
| 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 | Similar S:T ratio |
| Plainfield High School | Larger | No free-lunch data | Similar 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.
6 comparable middle schools (grades 6-8) serving the same city.
Next steps
Verify locally before acting on Timber Ridge Middle School's federal record.
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.
Timber Ridge Middle School has 885 students enrolled. It is a middle school in Plainfield, IL.
The student-teacher ratio at Timber Ridge Middle School is 16.9:1, which is 21% higher than the Illinois average of 14:1 and 8% higher than the national average of 15.7:1.
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.
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, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
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.
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. 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.
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.