For the 2026 school year, there is 1 public middle school serving 58 students in Sully County, SD.
The top-ranked public middle school in Sully County, SD is Sully Buttes Middle School - 06. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Sully County, SD public middle school have an average math proficiency score of 55% (versus the South Dakota public middle school average of 39%), and reading proficiency score of 55% (versus the 49% statewide average). Middle schools in Sully County have an average ranking of 9/10, which is in the top 20% of South Dakota public middle schools.
Minority enrollment is 16% of the student body (majority American Indian), which is less than the South Dakota public middle school average of 42% (majority American Indian).
Best Public Middle Schools in Sully County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Sully Buttes Middle School - 06
(Math: 50-59% | Reading: 50-59%)
Rank:
Rank:
8/
Top 30%10
500 8th St
Onida, SD 57564
(605) 258-2618
Onida, SD 57564
(605) 258-2618
Gr: 6-8 | 58 students Student-teacher ratio: 10:1 Minority enrollment: 15%
Sully County Public Schools (Closed)
School
Location
Quick Facts
Frequently Asked Questions
What are the top-ranked public middle schools in Sully County, SD?
The top-ranked public middle schools in Sully County, SD include Sully Buttes Middle School - 06.
How many public middle schools are located in Sully County?
1 public middle schools are located in Sully County.
What is the racial composition of students in Sully County?
Sully County public middle schools minority enrollment is 16% of the student body (majority American Indian), which is less than the South Dakota public middle schools average of 42% (majority American Indian).
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