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For the 2025-26 school year, there are 2 public high schools serving 500 students in Johnson County, IL.

The top ranked public high schools in Johnson County, IL are Goreville High School and Vienna High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Johnson County, IL public high schools have an average math proficiency score of 10% (versus the Illinois public high school average of 26%), and reading proficiency score of 20% (versus the 29% statewide average). High schools in Johnson County have an average ranking of 2/10, which is in the bottom 50% of Illinois public high schools.

Johnson County, IL public high school have a Graduation Rate of 89%, which is more than the Illinois average of 87%.

The school with highest graduation rate is Vienna High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.

Minority enrollment is 9% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).