For the 2025-26 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 (2025-26)
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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