For the 2025 school year, there are 3 public schools serving 215 students in Sully County, SD.
The top ranked public schools in Sully County, SD are Onida Elementary - 04, Sully Buttes Middle School - 06 and 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 schools have an average math proficiency score of 55% (versus the South Dakota public school average of 43%), and reading proficiency score of 63% (versus the 51% statewide average). Schools in Sully County have an average ranking of 10/10, which is in the top 10% of South Dakota public schools.
Minority enrollment is 16% of the student body (majority American Indian and Hispanic), which is less than the South Dakota public school average of 33% (majority American Indian).
Best Public Schools in Sully County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Onida Elementary - 04
(Math: 60-69% | Reading: 70-79%)
Rank:
Rank:
10/
Top 5%10
500 8th St
Onida, SD 57564
(605) 258-2617
Onida, SD 57564
(605) 258-2617
Grades: K-5
| 85 students
Rank: #22.
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
Grades: 6-8
| 58 students
Rank: #33.
Sully Buttes High School - 07
(Math: 21-39% | Reading: 40-59%)
Rank:
Rank:
3/
Bottom 50%10
500 8th St
Onida, SD 57564
(605) 258-2617
Onida, SD 57564
(605) 258-2617
Grades: 9-12
| 72 students
Sully County Public Schools (Closed)
School
Location
Grades
Students
<麻豆果冻传媒 class='so-dt-title' id='faq'>Frequently Asked Questions
What are the top ranked public schools in Sully County, SD?
The top ranked public schools in Sully County, SD include Onida Elementary - 04, Sully Buttes Middle School - 06 and Sully Buttes High School - 07.
How many public schools are located in Sully County?
3 public schools are located in Sully County.
What is the racial composition of students in Sully County?
Sully County public schools minority enrollment is 16% of the student body (majority American Indian and Hispanic), which is less than the South Dakota public schools average of 33% (majority American Indian).
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