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For the 2026 school year, there are 3 public high schools serving 448 students in Sullivan County, MO.

The top-ranked public high schools in Sullivan County, MO are Green City High School, Newtown-harris High School and Milan C-2 High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Sullivan County, MO public high schools have an average math proficiency score of 34% (versus the Missouri public high school average of 36%), and reading proficiency score of 43% (versus the 51% statewide average). High schools in Sullivan County have an average ranking of 4/10, which is in the bottom 50% of Missouri public high schools.

Sullivan County, MO public high school have a Graduation Rate of 88%, which is less than the Missouri average of 89%.

The school with highest graduation rate is Milan C-2 High School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Missouri or national school graduation rate statistics.

Minority enrollment is 35% of the student body (majority Hispanic), which is more than the Missouri public high school average of 30% (majority Black).