For the 2026 school year, there are 3 public schools serving 579 students in Plainfield, WI.
The top-ranked public schools in Plainfield, WI are Tri-county Elementary School, Tri-county High School and Tri-county Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Plainfield, WI public schools have an average math proficiency score of 19% (versus the Wisconsin public school average of 40%), and reading proficiency score of 24% (versus the 39% statewide average). Schools in Plainfield have an average ranking of 1/10, which is in the bottom 50% of Wisconsin public schools.
Minority enrollment is 32% of the student body (majority Hispanic), which is less than the Wisconsin public school average of 34% (majority Hispanic).
Best Public Schools in Plainfield, WI (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Tri-county Elementary School
(Math: 25-29% | Reading: 35-39%)
Rank:
Rank:
4/
Bottom 50%10
409 S West St
Plainfield, WI 54966
(715) 335-6366
Plainfield, WI 54966
(715) 335-6366
Gr: PK-5 | 265 students Student-teacher ratio: 13:1 Minority enrollment: 33%
Rank: #22.
Tri-county High School
(Math: 11-19% | Reading: 20-29%)
Rank:
Rank:
2/
Bottom 50%10
409 S West St
Plainfield, WI 54966
(715) 335-6366
Plainfield, WI 54966
(715) 335-6366
Gr: 9-12 | 180 students Student-teacher ratio: 11:1 Minority enrollment: 33%
Rank: #33.
Tri-county Middle School
(Math: 10-14% | Reading: 15-19%)
Rank:
Rank:
1/
Bottom 50%10
409 S West St
Plainfield, WI 54966
(715) 335-6366
Plainfield, WI 54966
(715) 335-6366
Gr: 6-8 | 134 students Student-teacher ratio: 13:1 Minority enrollment: 29%
Frequently Asked Questions
What are the top-ranked public schools in Plainfield, WI?
The top-ranked public schools in Plainfield, WI include Tri-county Elementary School, Tri-county High School and Tri-county Middle School.
How many public schools are located in Plainfield?
3 public schools are located in Plainfield.
What is the racial composition of students in Plainfield?
Plainfield public schools minority enrollment is 32% of the student body (majority Hispanic), which is less than the Wisconsin public schools average of 34% (majority Hispanic).
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.