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For the 2025-26 school year, there is 1 public high school serving 169 students in Plainfield, WI.

The top-ranked public high school in Plainfield, WI is Tri-county High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Plainfield, WI public high school have an average math proficiency score of 15% (versus the Wisconsin public high school average of 29%), and reading proficiency score of 25% (versus the 37% statewide average). High schools in Plainfield have an average ranking of 1/10, which is in the bottom 50% of Wisconsin public high schools.

Plainfield, WI public high school have a Graduation Rate of 90%, which is more than the Wisconsin average of 89%.

The school with highest graduation rate is Tri-county High School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Wisconsin or national school graduation rate statistics.

Minority enrollment is 31% of the student body (majority Hispanic), which is less than the Wisconsin public high school average of 33% (majority Hispanic and Black).