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For the 2026 school year, there is 1 public high school serving 190 students in Mason City, IL.

The top-ranked public high school in Mason City, IL is Illini Central High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Mason City, IL public high school have an average math proficiency score of 15% (versus the Illinois public high school average of 26%), and reading proficiency score of 25% (versus the 29% statewide average). High schools in Mason City have an average ranking of 4/10, which is in the bottom 50% of Illinois public high schools.

Mason City, IL public high school have a Graduation Rate of 90%, which is more than the Illinois average of 87%.

The school with highest graduation rate is Illini Central High School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.

Minority enrollment is 7% of the student body (majority Hispanic), which is less than the Illinois public high school average of 55% (majority Hispanic).