For the 2025-26 school year, there are 3 public middle schools serving 229 students in Grant County, SD. The top-ranked public middle schools in Grant County, SD are Big Stone City Middle School - 03 and Milbank Middle School - 02. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Grant County, SD public middle schools have an average math proficiency score of 43% (versus the South Dakota public middle school average of 39%), and reading proficiency score of 57% (versus the 49% statewide average). Middle schools in Grant County have an average ranking of 8/10, which is in the top 30% of South Dakota public middle schools.
Minority enrollment is 17% of the student body (majority Hispanic), which is less than the South Dakota public middle school average of 42% (majority American Indian).
Best Public Middle Schools in Grant County (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Big Stone City Middle School - 03
(Math: 60-79% | Reading: 60-79%)
Rank:
Rank:
10/
Top 5%10
655 Walnut St
Big Stone City, SD 57216
(605) 862-8108
Big Stone City, SD 57216
(605) 862-8108
Gr: 6-8 | 16 students Student-teacher ratio: 4:1
Rank: #22.
Milbank Middle School - 02
(Math: 41% | Reading: 56%)
Rank:
Rank:
5/
Bottom 50%10
1001 E Park Ave
Milbank, SD 57252
(605) 432-5519
Milbank, SD 57252
(605) 432-5519
Gr: 6-8 | 213 students Student-teacher ratio: 13:1 Minority enrollment: 18%
Grant County Public Schools (Closed)
School
Location
Quick Facts
15765 484th Ave
Revillo, SD 57259
(605) 432-6615
Revillo, SD 57259
(605) 432-6615
Gr: K-8 | 10 students Student-teacher ratio: 10:1
16370 482nd Ave
Revillo, SD 57259
(605) 623-4241
Revillo, SD 57259
(605) 623-4241
Gr: K-5 | 27 students Student-teacher ratio: 5:1
16370 482nd Ave
Revillo, SD 57259
(605) 623-4241
Revillo, SD 57259
(605) 623-4241
Gr: 9-12 | 17 students Student-teacher ratio: 4:1
16370 482nd Ave
Revillo, SD 57259
(605) 623-4241
Revillo, SD 57259
(605) 623-4241
Gr: 6-8 | 16 students Student-teacher ratio: 8:1
16370 482nd Ave
Revillo, SD 57259
(605) 623-4241
Revillo, SD 57259
(605) 623-4241
Gr: PK | 2 students
Frequently Asked Questions
What are the top-ranked public middle schools in Grant County, SD?
The top-ranked public middle schools in Grant County, SD include Big Stone City Middle School - 03 and Milbank Middle School - 02. Grant County has one of the highest concentrations of top-ranked public schools in South Dakota.
How many public middle schools are located in Grant County?
3 public middle schools are located in Grant County.
What is the racial composition of students in Grant County?
Grant County public middle schools minority enrollment is 17% of the student body (majority Hispanic), which is less than the South Dakota public middle schools average of 42% (majority American Indian).
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