Tri-County High
🇺🇸 Official data · 2025Plainfield, Wisconsin 54966 · Tri-County Area School District
#291 of 446 high schools in Wisconsin
#11311 of 16,910 nationally
About Tri-County High
Tri-County High is a public high located in Plainfield, in the Tri-County Area School District school district of Wisconsin, United States. It caters for Grades 9–12. In 2025 it enrolled 180 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 38.6 out of 100, placing it in the lower 50% of high schools in United States and 291st of 446 ranked high schools in Wisconsin. Its strongest component is students per teacher (67th percentile), and its weakest is math proficiency (25th percentile).
Other published figures: enrollment 180.
There are 3 schools in Plainfield; Tri-County High ranks 2nd of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)24.5%
- Reading proficiency (30%)44.5%
- Community advantage (fewer free/reduced-price lunch) (25%)56.7%
- Students per teacher (15%)11.3
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Tri-County High by the official sources.
- Enrollment
- 180
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 56.7%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 11.3
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 44.5%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 24.5%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Tri-County High
Closest schools by straight-line distance, with their Success Index (US).
Tri-County Elementary
Plainfield · Public elementary · Grades PK–5
265 students · 0 m away
Tri-County Middle
Plainfield · Public middle · Grades 6–8
134 students · 0 m away
Almond-Bancroft Elementary
Almond · Public elementary · Grades PK–5
171 students · 8.5 km away
Almond-Bancroft High
Almond · Public high · Grades 9–12
103 students · 8.5 km away
Almond-Bancroft Middle
Almond · Public middle · Grades 6–8
77 students · 8.5 km away
Similar schools
Public high schools in Wisconsin with a comparable Enrollment.
Thorp High
Thorp · Public high · Grades 9–12
181 students
Boscobel High
Boscobel · Public high · Grades 9–12
182 students
Washburn High
Washburn · Public high · Grades 9–12
182 students
Rio Middle/High
Rio · Public high · Grades 6–12
183 students
Niagara High
Niagara · Public high · Grades 7–12
184 students
Gibraltar High
Fish Creek · Public high · Grades 9–12
175 students
Frequently asked questions
Is Tri-County High a good school?
Tri-County High has a Success Index (US) of 38.6 out of 100 (Lower 50% of high schools in United States) and ranks #291 of 446 in Wisconsin. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Tri-County High rank in Wisconsin?
Tri-County High ranks #291 of 446 high schools in Wisconsin and #11311 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Tri-County High?
Tri-County High had 180 students in 2025.
Is Tri-County High a elementary school or a high school?
Tri-County High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Tri-County High?
There are 5 schools within 15 km of Tri-County High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.