For the 2026 school year, there is 1 public high school serving 72 students in Sully County, SD.
The top-ranked public high school in Sully County, SD is Sully Buttes High School - 07. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Sully County, SD public high school have an average math proficiency score of 50% (versus the South Dakota public high school average of 40%), and reading proficiency score of 49% (versus the 63% statewide average). High schools in Sully County have an average ranking of 6/10, which is in the top 50% of South Dakota public high schools.
Sully County, SD public high school have a Graduation Rate of 80%, which is less than the South Dakota average of 82%.
The school with highest graduation rate is Sully Buttes High School - 07, with ≥80% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.
Minority enrollment is 17% of the student body (majority American Indian), which is less than the South Dakota public high school average of 35% (majority American Indian).
Best Public High Schools in Sully County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Sully Buttes High School - 07
(Math: <50% | Reading: 40-59%)
Rank:
Rank:
5/
Bottom 50%10
500 8th St
Onida, SD 57564
(605) 258-2617
Onida, SD 57564
(605) 258-2617
Gr: 9-12 | 72 students Student-teacher ratio: 10:1 Minority enrollment: 17%
Sully County 51±¬ÁÏs (Closed)
School
Location
Quick Facts
Frequently Asked Questions
What are the top-ranked public high schools in Sully County, SD?
The top-ranked public high schools in Sully County, SD include Sully Buttes High School - 07.
How many public high schools are located in Sully County?
1 public high schools are located in Sully County.
What is the racial composition of students in Sully County?
Sully County public high schools minority enrollment is 17% of the student body (majority American Indian), which is less than the South Dakota public high schools average of 35% (majority American Indian).
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