Enrollment
1,800
Illinois · 2024-25 NCES data
High school (grades 9-12) · Plainfield, IL
Plainfield High School
Federal NCES profile for Plainfield High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 173174003339
👥 S:T ratio 35
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 40
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Plainfield High School earns 41/100 on the Resource Investment Index, with class sizes larger than 83% of Illinois schools. It is also one of the largest schools in Illinois.
- #4 of 4
- high schools in Plainfield · Resource Index
- 41
- Resource Index · Typical
- 16.3:1
- large classes for Illinois
- 1,800
- students enrolled
Plainfield High School has class sizes larger than 83% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Plainfield High School ranks #4 of 4 high schools in Plainfield, IL.
School address
District: Plainfield Sd 202 · Illinois
NCES ID 173174003339 Verify on NCES CCD record →
Teachers (FTE)
122.0
Federal CCD staff survey
Students per teacher
16.3:1
vs 14:1 Illinois avg
+16% vs state
Student-teacher ratio in context
How Plainfield High School compares with Illinois and U.S. medians
What stands out at Plainfield High School
Plainfield High School is a large high school in Plainfield, Illinois, enrolling 1,800 students.
Class loads run somewhat heavier than typical: 16.3:1 puts it in the larger third of Illinois schools by student-teacher ratio.
By headcount it is one of the larger campuses in Illinois, bigger than 97% of state schools at 1,800 students.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by White (49%) and Hispanic or Latino (31%), more mixed than most schools in the state (diversity index 65/100).
On the academic-pipeline side it reports 21 Advanced Placement courses.
Counselor coverage runs a bit thin, about 300 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 45.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 5 expulsions at this campus for 2021-22.
Among Plainfield's high schools, it stands alongside Plainfield North High School (2,399 students): Plainfield High School is smaller than that campus by headcount and runs leaner classes (16.3:1 vs 17.9:1).
Plainfield Sd 202 also operates Plainfield North High School (2,399 students) and Plainfield South High School (2,323 students) alongside Plainfield High 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 Plainfield High School compares
Plainfield High 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 | 16.3:1 | ▲ 16% | 14:1 | 15.7:1 |
| Enrollment | 1,800 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
1,800
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
16.3:1
students per teacher
- 16% above state mean
Top 83% in Illinois - lower ratio than 17% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
45.7%
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
$15,235
per pupil, district-wide
- below Illinois avg of $17,042
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors6.0 FTE
Per 300 students, the combined health-and-guidance staffing load for this school.
Discipline context
138
in-school suspensions + 74 out-of-school
Suspension rate: 7.7 per 100 students. Combined in-school and out-of-school rate: 11.8 per 100 students. Reported via the Civil Rights Data Collection. Includes 5 expulsions.
Overview
Enrollment 1,800 Top 3% in Illinois - larger than 97% of 3,845 state schools
Teachers (FTE) 122.0
Students per teacher 16.3:1 +16% vs state
Free-lunch eligible -
NCES ID 173174003339
Student demographics
White 48.6%
Hispanic or Latino 30.6%
African American 12.5%
Two or More 4.7%
Asian 3.4%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 48.6% of enrollment.
Student-body diversity index 65.1/100
Simpson diversity index - at 65.1, Plainfield High School is more mixed than the Illinois school average of 38.9.
Programs & staff
AP courses offered 21
Counselors (FTE) 6.0
Students per counselor 300:1
Discipline & special education
Chronically absent 45.7%
In-school suspensions 138
Out-of-school suspensions 74
Expulsions 5
Funding & spending
District-wide per-pupil expenditure for Plainfield Sd 202, which includes Plainfield High School.
$15,235
Per student
-11%
vs Illinois
Avg $17,042
-8%
vs U.S.
Avg $16,593
Revenue mix
Local 50.4%
State 43.1%
Federal 6.6%
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 Plainfield High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Plainfield North High School | Larger | No free-lunch data | Higher S:T ratio |
| Plainfield South High School | Larger | No free-lunch data | Similar S:T ratio |
| Plainfield East High School | Similar size | No free-lunch data | Similar S:T ratio |
| John F Kennedy Middle Sch | Smaller | No free-lunch data | Similar S:T ratio |
| Timber Ridge Middle School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Plainfield High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,399
- Students per teacher
- 17.9:1
- Resource Index
- 27/100
- Enrollment
- 2,323
- Students per teacher
- 17.6:1
- Resource Index
- 31/100
- Enrollment
- 1,825
- Students per teacher
- 16.2:1
- Resource Index
- 28/100
- Enrollment
- 912
- Students per teacher
- 15.9:1
- Resource Index
- 35/100
- Enrollment
- 885
- Students per teacher
- 16.9:1
- Resource Index
- 30/100
Similar high schools in Plainfield
3 comparable high schools (grades 9-12) serving the same city.
Next steps
Verify locally before acting on Plainfield High School's federal record.
- Compare Plainfield High School against another school. Compare schools
- Plainfield Sd 202'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 Plainfield High School
How many students attend Plainfield High School?
Plainfield High School has 1,800 students enrolled. It is a high school in Plainfield, IL.
What is the student-teacher ratio at Plainfield High School?
The student-teacher ratio at Plainfield High School is 16.3:1, which is 16% higher than the Illinois average of 14:1 and 4% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Plainfield High School?
The largest demographic group at Plainfield High School is White at 48.6% of enrollment, in Plainfield, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.1/100.
What is the Resource Investment Index for Plainfield High School?
Plainfield High School has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Plainfield High School rank among high schools in Plainfield?
By Resource Investment Index, Plainfield High School ranks #4 of 4 high 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 high schools in Plainfield on the city page.
Is Plainfield High School a good school?
Plainfield High School earns 41/100 on the Resource Investment Index, with class sizes larger than 83% of Illinois schools. It is also one of the largest schools in Illinois. 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 Plainfield Sd 202?
Besides Plainfield High 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.