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For the 2025-26 school year, there are 2 public high schools serving 825 students in Union County, TN.

The top-ranked public high schools in Union County, TN are Union County Alternative Center and Union County High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Union County, TN public high schools have an average math proficiency score of 19% (versus the Tennessee public high school average of 25%), and reading proficiency score of 27% (versus the 40% statewide average). High schools in Union County have an average ranking of 3/10, which is in the bottom 50% of Tennessee public high schools.

Union County, TN public high school have a Graduation Rate of 87%, which is equal to the Tennessee average of 87%.

The school with highest graduation rate is Union County High School, with 85-89% graduation rate. Read more about public school graduation rate statistics in Tennessee or national school graduation rate statistics.

Minority enrollment is 6% of the student body (majority Hispanic), which is less than the Tennessee public high school average of 42% (majority Black).