- Enrollment
- 265
- Students per teacher
- 12:1
- Resource Index
- 42/100
High school (grades 9-12) · Plainfield, WI
Tri-County High
Federal NCES profile for Tri-County High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 551182001548
👥 S:T ratio 55
🌟 Gifted program 30
🎓 Counselors 52
📋 Attendance 14
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Tri-County High earns 38/100 on the Resource Investment Index, with class sizes smaller than 77% of Wisconsin schools.
- #2 of 3
- public schools in Plainfield · Resource Index
- 38
- Resource Index · Typical
- 11.3:1
- small classes for Wisconsin
- 47.5%
- free-lunch eligible
Tri-County High has class sizes smaller than 77% of Wisconsin schools. Computed live against every Wisconsin school reporting to NCES.
By Resource Investment Index, Tri-County High ranks #2 of 3 public schools in Plainfield, WI.
School address
District: Tri-County Area School District · Wisconsin
NCES ID 551182001548 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-8 students YoY
Tri-County High held near 169 students from 2022-23 to 2023-24 (-8 headcount).
Teacher FTE held 16.9 → 16.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-8 students YoY 551182001548 · Plainfield, WI High · SMALL · TRAD
180 enr · 11.3:1 · 47.5% lunch · RII 38
Nearest enrollment peer: Tri-County Elementary (265 students)
Tri-County High held near 169 students from 2022-23 to 2023-24 (-8 headcount). Teacher FTE held 16.9 → 16.9 across the same CCD years. Read with this school → · District book → · Wisconsin schools → · Find another →
Tri-County High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Tri-County Ele
Tri-County Elementary
265 students
- This school
Tri-County High
180 students
- Tri-County Mid
Tri-County Middle
134 students
What this shows Tri-County High reports 180 students on the CCD universe file.
How Tri-County High compares
Tri-County High held steady on CCD headcount: ratios and free-lunch share vs Wisconsin and U.S. means.
| Metric | This school | vs Wisconsin | Wisconsin avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.3:1 | ▼ 22% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 47.5% | ▲ 23% | 38.5% | 51.7% |
| Enrollment | 180 | top 73% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.3:1
Leaner classes than 81% of US schools, among the more generously staffed nationally.
180
Bigger than 17% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
47.5%
free-lunch eligible
- 23% above the Wisconsin average of 38.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
11.3:1
students per teacher
- 22% below state mean
Top 23% in Wisconsin - lower ratio than 77% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
34.4%
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
$15,995
per pupil, district-wide
- above Wisconsin avg of $15,645
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.8 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
11
in-school suspensions + 12 out-of-school
Suspension rate: 6.1 per 100 students. Combined in-school and out-of-school rate: 12.8 per 100 students. Reported via the Civil Rights Data Collection. Includes 4 expulsions.
Student demographics
White 67.2%
Hispanic or Latino 28.3%
Asian 2.2%
Native Hawaiian / Pacific Islander 1.7%
Two or More 0.6%
Largest group: White at 67.2% of enrollment.
Student-body diversity index 46.8/100
Simpson diversity index - at 46.8, Tri-County High is more mixed than the Wisconsin school average of 35.7.
Programs
AP courses offered 5
District finance for Tri-County Area School District reports $15,995 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Tri-County High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Tri-County Elementary | Larger | Similar economic need | Similar S:T ratio |
| Tri-County Middle | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Tri-County High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 134
- Students per teacher
- 13.4:1
- Resource Index
- 33/100
Nationwide high 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 (~180 students)
Frequently asked questions about Tri-County High
How many students attend Tri-County High?
Tri-County High has 180 students enrolled. It is a high school in Plainfield, WI. CCD year-over-year: 177 (2022-23) → 169 (2023-24), nearly flat (-8).
What is the student-teacher ratio at Tri-County High?
The student-teacher ratio at Tri-County High is 11.3:1, which is 22% lower than the Wisconsin average of 14.4:1 and 28% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Tri-County High?
47.5% of students at Tri-County High are eligible for free lunch, compared to the Wisconsin average of 38.5%.
What is the racial and ethnic makeup of Tri-County High?
The largest demographic group at Tri-County High is White at 67.2% of enrollment, in Plainfield, WI.
What is the Resource Investment Index for Tri-County High?
Tri-County High has a Resource Investment Index of 38/100 (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 Tri-County High rank among public schools in Plainfield?
By Resource Investment Index, Tri-County High ranks #2 of 3 public schools in Plainfield, WI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Tri-County Area School District?
Besides Tri-County High, Tri-County Area School District also operates Tri-County Elementary (265 students) and Tri-County Middle (134 students). See the Tri-County Area School District district page for the complete list.