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For the 2026 school year, there are 3 public high schools serving 851 students in Clark County, IL.

The top-ranked public high schools in Clark County, IL are Casey-westfield Jr/sr High School, Marshall High School and Martinsville Jr- Sr High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Clark County, IL public high schools have an average math proficiency score of 17% (versus the Illinois public high school average of 26%), and reading proficiency score of 31% (versus the 29% statewide average). High schools in Clark County have an average ranking of 7/10, which is in the top 50% of Illinois public high schools.

Clark County, IL public high school have a Graduation Rate of 82%, which is less than the Illinois average of 87%.

The school with highest graduation rate is Casey-westfield Jr/sr High School, with 85-89% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.

Minority enrollment is 6% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).