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For the 2026 school year, there is 1 public high school serving 492 students in Custer County, MT.

The top-ranked public high school in Custer County, MT is Custer Co District High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Custer County, MT public high school have an average math proficiency score of 22% (versus the Montana public high school average of 32%), and reading proficiency score of 37% (versus the 43% statewide average). High schools in Custer County have an average ranking of 3/10, which is in the bottom 50% of Montana public high schools.

Custer County, MT public high school have a Graduation Rate of 82%, which is less than the Montana average of 83%.

The school with highest graduation rate is Custer Co District High School, with 80-84% graduation rate. Read more about public school graduation rate statistics in Montana or national school graduation rate statistics.

Minority enrollment is 10% of the student body (majority Hispanic and American Indian), which is less than the Montana public high school average of 23% (majority American Indian).