For the 2026 school year, there are 3 public schools serving 573 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 38% 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 31% of the student body (majority Hispanic), which is less than the Wisconsin public school average of 34% (majority Hispanic and Black).
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 | 267 students Student-teacher ratio: 13:1 Minority enrollment: 30%
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 | 169 students Student-teacher ratio: 10:1 Minority enrollment: 31%
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 | 137 students Student-teacher ratio: 14:1 Minority enrollment: 33%
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 31% of the student body (majority Hispanic), which is less than the Wisconsin public schools average of 34% (majority Hispanic and Black).