Enrollment
189
Illinois · 2024-25 NCES data
High school (grades 9-12) · Brimfield, IL
Brimfield High School
Federal NCES profile for Brimfield High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 170720000375
👥 S:T ratio 53
📚 AP courses 5
🌟 Gifted program 30
📋 Attendance 54
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Brimfield High School earns 35/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also less racially and ethnically mixed than most Illinois schools.
- 35
- Resource Index · Typical
- 11.8:1
- small classes for Illinois
- 189
- students enrolled
Brimfield High School has class sizes smaller than 74% of Illinois schools. Computed live against every Illinois school reporting to NCES.
School address
District: Brimfield Cusd 309 · Illinois
NCES ID 170720000375 Verify on NCES CCD record →
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
11.8:1
vs 14:1 Illinois avg
-16% vs state
Student-teacher ratio in context
How Brimfield High School compares with Illinois and U.S. medians
What stands out at Brimfield High School
Brimfield High School is a mid-sized high school in Brimfield, Illinois, enrolling 189 students.
Class sizes run a bit leaner than typical: 11.8:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 189 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 (96% of enrollment), among the less diverse in the state (diversity index 7/100).
On the academic-pipeline side it reports 1 Advanced Placement course.
Attendance runs somewhat below the norm, with 18.5% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Brimfield Cusd 309 spends $12,764 per pupil, 25% below the Illinois average, a leaner-resourced district than most.
Its district, Brimfield Cusd 309, also runs Brimfield Grade School (398 students).
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 Brimfield High School compares
Brimfield 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 | 11.8:1 | ▼ 16% | 14:1 | 15.7:1 |
| Enrollment | 189 | top 83% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.8:1
Leaner classes than 77% of US schools, among the more generously staffed nationally.
189
Bigger than 18% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
11.8:1
students per teacher
- 16% below state mean
Top 26% in Illinois - lower ratio than 74% 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
$12,764
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 + 11 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 5.8 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 96.3%
American Indian / Alaska Native 1.1%
African American 0.5%
Hispanic or Latino 0.5%
Asian 0.5%
Native Hawaiian / Pacific Islander 0.5%
Two or More 0.5%
Largest group: White at 96.3% of enrollment.
Student-body diversity index 7.2/100
Simpson diversity index - at 7.2, Brimfield High School is less mixed than the Illinois school average of 38.9.
Programs
AP courses offered 1
Funding & spending
District-wide per-pupil expenditure for Brimfield Cusd 309, which includes Brimfield High School.
$12,764
Per student
-25%
vs Illinois
Avg $17,042
-23%
vs U.S.
Avg $16,593
Revenue mix
Local 64.0%
State 29.4%
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 Brimfield High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Brimfield Grade School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Brimfield High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 398
- Students per teacher
- 12.8:1
- Resource Index
- 50/100
Similar high 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 (~189 students)
Similar student-teacher ratio (~11.8:1)
Next steps
Verify locally before acting on Brimfield High School's federal record.
- Compare Brimfield High School against another school. Compare schools
- Brimfield Cusd 309'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 Brimfield High School
How many students attend Brimfield High School?
Brimfield High School has 189 students enrolled. It is a high school in Brimfield, IL.
What is the student-teacher ratio at Brimfield High School?
The student-teacher ratio at Brimfield High School is 11.8:1, which is 16% lower than the Illinois average of 14:1 and 25% 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 Brimfield High School?
The largest demographic group at Brimfield High School is White at 96.3% of enrollment, in Brimfield, IL.
What is the Resource Investment Index for Brimfield High School?
Brimfield High School has a Resource Investment Index of 35/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Is Brimfield High School a good school?
Brimfield High School earns 35/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also less 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.
What other schools are in Brimfield Cusd 309?
Besides Brimfield High School, Brimfield Cusd 309 also operates Brimfield Grade School (398 students). See the Brimfield Cusd 309 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.