For the 2026 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 36% (majority American Indian).
Best Public High Schools in Dewey County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
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
Gr: 9-12 | 117 students Student-teacher ratio: 13:1 Minority enrollment: 50%
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
Gr: 9-12 | 3 students Student-teacher ratio: 1:1
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
Gr: 9-12 | 6 students Student-teacher ratio: 1:1
Rank: n/an/a
2004 E Street
Eagle Butte, SD 57625
(605) 964-8777
Eagle Butte, SD 57625
(605) 964-8777
Gr: K-12 | 829 students Student-teacher ratio: 11:1
Rank: n/an/a
15618 1st Ave
Ridgeview, SD 57652
(605) 733-2290
Ridgeview, SD 57652
(605) 733-2290
Gr: K-12 | 166 students Student-teacher ratio: 10:1
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 36% (majority American Indian).
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.