Best St. Clair County Public High Schools (2026)

For the 2026 school year, there are 2 public high schools serving 405 students in St. Clair County, MO.

The top-ranked public high schools in St. Clair County, MO are Osceola Jr.-sr. High School and Appleton City High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

St. Clair County, MO public high schools have an average math proficiency score of 30% (versus the Missouri public high school average of 36%), and reading proficiency score of 32% (versus the 51% statewide average). High schools in St. Clair County have an average ranking of 1/10, which is in the bottom 50% of Missouri public high schools.

St. Clair County, MO public high school have a Graduation Rate of 83%, which is less than the Missouri average of 89%.

The school with highest graduation rate is Osceola Jr.-sr. High School, with 80-89% graduation rate. Read more about public school graduation rate statistics in Missouri or national school graduation rate statistics.

Minority enrollment is 6% of the student body (majority Hispanic and Black), which is less than the Missouri public high school average of 31% (majority Black).