Best Mercer County Public High Schools (2026)

For the 2026 school year, there are 2 public high schools serving 857 students in Mercer County, IL.

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

Mercer 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 24% (versus the 29% statewide average). High schools in Mercer County have an average ranking of 5/10, which is in the bottom 50% of Illinois public high schools.

Mercer County, IL public high school have a Graduation Rate of 87%, which is equal to the Illinois average of 87%.

The school with highest graduation rate is Sherrard 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 11% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).