For the 2025 school year, there are 5 public high schools serving 1,163 students in Dewey County, SD.
The top ranked public high schools in Dewey County, SD are Timber Lake High School - 01, E. A. G. L. E. Center High School - 07 and Eagle Butte High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Dewey County, SD public high schools have an average math proficiency score of 27% (versus the South Dakota public high school average of 40%), and reading proficiency score of 36% (versus the 63% statewide average). High schools in Dewey County have an average ranking of 2/10, which is in the bottom 50% of South Dakota public high schools.
Dewey County, SD public high school have a Graduation Rate of 57%, which is less than the South Dakota average of 82%.
The school with highest graduation rate is Timber Lake High School - 01, with ≥80% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.
Minority enrollment is 95% of the student body (majority American Indian), which is more than the South Dakota public high school average of 35% (majority American Indian).
Best Public High Schools in Dewey County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Timber Lake High School - 01
(Math: 60-79% | Reading: ≥80%)
Rank:
Rank:
10/
Top 5%10
500 Main St
Timber Lake, SD 57656
(605) 865-3654
Timber Lake, SD 57656
(605) 865-3654
Grades: 9-12
| 110 students
Rank: #22.
E. A. G. L. E. Center High School - 07
Alternative School
(Math: <50% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
E St
Eagle Butte, SD 57625
(605) 964-8773
Eagle Butte, SD 57625
(605) 964-8773
Grades: 9-12
| 3 students
Rank: #33.
Eagle Butte High School - 01
(Math: ≤5% | Reading: 11-19%)
Rank:
Rank:
1/
Bottom 50%10
W Frontier Ave
Eagle Butte, SD 57625
(605) 964-8744
Eagle Butte, SD 57625
(605) 964-8744
Grades: 9-12
| 10 students
Rank: n/an/a
2004 E Street
Eagle Butte, SD 57625
(605) 964-8777
Eagle Butte, SD 57625
(605) 964-8777
Grades: K-12
| 862 students
Rank: n/an/a
15618 1st Ave
Ridgeview, SD 57652
(605) 733-2290
Ridgeview, SD 57652
(605) 733-2290
Grades: K-12
| 178 students
Dewey County Public Schools (Closed)
School
Location
Grades
Students
S Prairie Rd
Eagle Butte, SD 57625
(605) 964-2702
Eagle Butte, SD 57625
(605) 964-2702
Grades: 3-4
| 62 students
504 N Taft
Isabel, SD 57633
(605) 466-2125
Isabel, SD 57633
(605) 466-2125
Grades: K-6
| 38 students
504 N Taft
Isabel, SD 57633
(605) 466-2125
Isabel, SD 57633
(605) 466-2125
Grades: 9-12
| 27 students
504 N Taft
Isabel, SD 57633
(605) 466-2125
Isabel, SD 57633
(605) 466-2125
Grades: 7-8
| 10 students
Northwest Area Ed Cooperative - 01 (Closed 2023)
Alternative School
503 N Main
Isabel, SD 57633
(605) 466-2206
Isabel, SD 57633
(605) 466-2206
Grades: K-12
| n/a students
Frequently Asked Questions
What are the top ranked public high schools in Dewey County, SD?
The top ranked public high schools in Dewey County, SD include Timber Lake High School - 01, E. A. G. L. E. Center High School - 07 and Eagle Butte High School - 01.
How many public high schools are located in Dewey County?
5 public high schools are located in Dewey County.
What is the racial composition of students in Dewey County?
Dewey County public high schools minority enrollment is 95% of the student body (majority American Indian), which is more than the South Dakota public high schools average of 35% (majority American Indian).
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