For the 2026 school year, there are 6 public schools serving 906 students in Custer County, SD.
The top-ranked public schools in Custer County, SD are Custer Elementary - 02, Custer High School - 01 and Custer Jr. High - 05. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Custer County, SD public schools have an average math proficiency score of 47% (versus the South Dakota public school average of 43%), and reading proficiency score of 52% (versus the 51% statewide average). Schools in Custer County have an average ranking of 6/10, which is in the top 50% of South Dakota public schools.
Minority enrollment is 15% of the student body (majority Hispanic), which is less than the South Dakota public school average of 34% (majority American Indian).
Best Public Schools in Custer County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Custer Elementary - 02
(Math: 60-64% | Reading: 50-54%)
Rank:
Rank:
8/
Top 30%10
1415 Wildcat Ln
Custer, SD 57730
(605) 673-4483
Custer, SD 57730
(605) 673-4483
Gr: PK-6 | 269 students Student-teacher ratio: 10:1 Minority enrollment: 16%
Rank: #22.
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 | 272 students Student-teacher ratio: 14:1 Minority enrollment: 15%
Rank: #33.
Custer Jr. High - 05
(Math: 35-39% | Reading: 55-59%)
Rank:
Rank:
5/
Bottom 50%10
1645 Wildcat Ln
Custer, SD 57730
(605) 673-4473
Custer, SD 57730
(605) 673-4473
Gr: 7-8 | 101 students Student-teacher ratio: 13:1 Minority enrollment: 12%
Rank: #44.
Hermosa Elementary - 04
(Math: 35-39% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
11 4th St
Hermosa, SD 57744
(605) 255-4345
Hermosa, SD 57744
(605) 255-4345
Gr: PK-6 | 181 students Student-teacher ratio: 11:1 Minority enrollment: 9%
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 | 16 students Student-teacher ratio: 16:1 Minority enrollment: 19%
Rank: n/an/a
11 4th St
Hermosa, SD 57744
(605) 255-4345
Hermosa, SD 57744
(605) 255-4345
Gr: 7-8 | 48 students Student-teacher ratio: 10:1 Minority enrollment: 16%
Frequently Asked Questions
What are the top-ranked public schools in Custer County, SD?
The top-ranked public schools in Custer County, SD include Custer Elementary - 02, Custer High School - 01 and Custer Jr. High - 05.
How many public schools are located in Custer County?
6 public schools are located in Custer County.
What is the racial composition of students in Custer County?
Custer County public schools minority enrollment is 15% of the student body (majority Hispanic), which is less than the South Dakota public schools average of 34% (majority American Indian).
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