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For the 2025-26 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).