Best Custer County Public High Schools (2026)

For the 2026 school year, there are 2 public high schools serving 281 students in Custer County, SD.

The top-ranked public high school in Custer County, SD is Custer High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Custer County, SD public high schools have an average math proficiency score of 42% (versus the South Dakota public high school average of 40%), and reading proficiency score of 77% (versus the 63% statewide average). High schools in Custer County have an average ranking of 9/10, which is in the top 20% of South Dakota public high schools.

Custer County, SD public high school have a Graduation Rate of 92%, which is more than the South Dakota average of 82%.

The school with highest graduation rate is Custer High School - 01, with 90-94% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.

Minority enrollment is 16% of the student body (majority Hispanic), which is less than the South Dakota public high school average of 36% (majority American Indian).