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 35% (majority American Indian).
Best Public High Schools in Custer County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Custer High School - 01
(Math: 40-44% | Reading: 75-79%)
Rank:
Rank:
8/
Top 30%10
1645 Wildcat Ln
Custer, SD 57730
(605) 673-4473
Custer, SD 57730
(605) 673-4473
Gr: 9-12 | 262 students Student-teacher ratio: 13:1 Minority enrollment: 16%
Rank: n/an/a
A.c.e. High Academy - 06
Alternative School
527 Montgomery St
Custer, SD 57730
(605) 673-4473
Custer, SD 57730
(605) 673-4473
Gr: 9-12 | 19 students Student-teacher ratio: 19:1 Minority enrollment: 16%
Custer County 51±¬ÁÏs (Closed)
School
Location
Quick Facts
Star Evergreen High School (Closed 2023)
Alternative School
12279 Brady Dr
Custer, SD 57730
(605) 673-2521
Custer, SD 57730
(605) 673-2521
Gr: 9-12
Star Evergreen Junior High School (Closed 2023)
Alternative School
12279 Brady Dr
Custer, SD 57730
(605) 673-2521
Custer, SD 57730
(605) 673-2521
Gr: 7-8
Frequently Asked Questions
What are the top-ranked public high schools in Custer County, SD?
The top-ranked public high schools in Custer County, SD include Custer High School - 01.
How many public high schools are located in Custer County?
2 public high schools are located in Custer County.
What is the racial composition of students in Custer County?
Custer County public high schools minority enrollment is 16% of the student body (majority Hispanic), which is less than the South Dakota public high schools average of 35% (majority American Indian).
Recent Articles
No Child Left Behind: Past, Present, and Future of U.S. School Policy
Explore how No Child Left Behind evolved into ESSA, what it means for 2025‑26 schooling, and what parents need to know about testing, admissions planning, and funding.
Understanding 51±¬ÁÏ Fees & Optional Costs Guide
Discover what public school fees are required versus optional, with 2026 updates for parents, students, and educators on budgeting and planning.
Extracurricular Sign‑Ups: How to Choose Clubs, Sports, & Activities
Expert guidance for students and parents on choosing extracurricular clubs, sports, and activities ahead of term start with updated 2026 perspectives.