Serving 180 students in grades 9-12, Tri-county High School ranks in the bottom 50% of all schools in Wisconsin for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 11-19% (which is lower than the Wisconsin state average of 40%). The percentage of students achieving proficiency in reading/language arts is 20-29% (which is lower than the Wisconsin state average of 38%).
The student-teacher ratio of 11:1 is lower than the Wisconsin state level of 13:1.
Minority enrollment is 33% of the student body (majority Hispanic), which is lower than the Wisconsin state average of 34% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 180 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 33%
- Graduation Rate: ≥90% (Top 50% in WI)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 11-19% (Btm 50%)
- Reading Proficiency: 20-29% (Btm 50%)
- Science Proficiency: 11-19% (Btm 50%)
- Attendance Zone: Tri-County High's attendance zone encompasses the entire school district of Plainfield, WI, covering approximately 216.9 square miles. The typical drive to the school takes about 15-20 minutes, with an average distance of 8.2 miles to the edge of the zone and a maximum of 12 miles to its furthest point.
- Source: National Center for Education Statistics (NCES), WI Dept. of Education
School Overview
Tri-county High School's student population of 180 students has grown by 12% over five school years.
The teacher population of 16 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
180 students
Total Classroom Teachers
16 teachers
School Rankings
Tri-county High School ranks within the bottom 50% of all 1,962 schools in Wisconsin (based off of combined math and reading proficiency testing data).
The diversity score of Tri-county High School is 0.48, which is less than the diversity score at state average of 0.54. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1694 out of 1962 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
11-19%
40%
Reading/Language Arts Test Scores (% Proficient)
20-29%
38%
Science Test Scores (% Proficient)
11-19%
44%
Student-Teacher Ratio
11:1
13:1
American Indian
n/a
1%
Asian
2%
4%
Hispanic
28%
14%
Black
n/a
9%
White
67%
66%
Hawaiian
2%
n/a
Two or more races
1%
6%
All Ethnic Groups
Graduation Rate
≥90%
90.5%
Chronically Absent Students
(22-23)29.4%
24%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
44%
36%
Eligible for Reduced Lunch
12%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WI Dept. of Education
Frequently Asked Questions
What is Tri-county High School's ranking?
Tri-county High School is ranked #1694 out of 1,962 schools, which ranks it among the bottom 50% of public schools in Wisconsin.
What percent of students have achieved state testing proficiency in math and reading?
11-19% of students have achieved math proficiency (compared to the 40% WI state average), while 20-29% of students have achieved reading proficiency (compared to the 38% WI state average).
What is the graduation rate of Tri-county High School?
The graduation rate of Tri-county High School is 90%, which is lower than the Wisconsin state average of 90.5%.
How many students attend Tri-county High School?
180 students attend Tri-county High School.
What is the racial composition of the student body?
67% of Tri-county High School students are White, 28% of students are Hispanic, 2% of students are Asian, 2% of students are Hawaiian, and 1% of students are Two or more races.
What is the student-teacher ratio of Tri-county High School?
Tri-county High School has a student ration of 11:1, which is lower than the Wisconsin state average of 13:1.
What grades does Tri-county High School offer ?
Tri-county High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Tri-county High School part of?
Tri-county High School is part of Tri-County Area School District.
School Reviews
Review Tri-county High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
School Leadership Matters: Evaluating a Principal
Learn how to evaluate a public school principal before enrolling by examining leadership stability, teacher support, communication, school culture, instructional priorities, discipline, family engagement, and measurable improvement efforts.
Comparing Before- and After-School Programs
Learn how to compare before- and after-school programs when choosing a public school, including hours, costs, staffing, safety, activities, enrollment rules, transportation, meals, and daily convenience for families.
Choosing a Public School During Budget Uncertainty
Learn which questions parents should ask when choosing a public school during budget uncertainty, including staffing, programs, class sizes, transportation, reserves, enrollment trends, and planned reductions ahead.
