Best Public High Schools in Dewey County (2025-26)

Best Dewey County Public High Schools (2025-26)

For the 2025-26 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 score of 27% (versus the South Dakota public high school average of 40%), and 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 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 (2025-26)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Timber Lake High School - 01

(Math: 60-79% | Reading: ≥80%)
:

10/

Top 5%

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500 Main St
Timber Lake, SD 57656
(605) 865-3654

Gr: 9-12 | 110 students Student-teacher ratio: 10:1 Minority enrollment: 48%

Rank: #22.

E. A. G. L. E. Center High School - 07

Alternative School

(Math: <50% | Reading: <50%)
:

Top 50%

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E St
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%)
:

Bottom 50%

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W Frontier Ave
Eagle Butte, SD 57625
(605) 964-8744

Gr: 9-12 | 10 students Student-teacher ratio: 1:1 Minority enrollment: 90%

Rank: n/an/a

Cheyenne-eagle Butte School

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2004 E Street
Eagle Butte, SD 57625
(605) 964-8777

Gr: K-12 | 862 students Student-teacher ratio: 11:1

Rank: n/an/a

Tiospaye Topa School

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15618 1st Ave
Ridgeview, SD 57652
(605) 733-2290

Gr: K-12 | 178 students Student-teacher ratio: 25:1

[+] Show Closed 51�Թ�� in Dewey County, SD

Dewey County 51�Թ�� (Closed)

School

Location

Quick Facts

Eagle Butte Elementary - 08 (Closed 2013)

S Prairie Rd
Eagle Butte, SD 57625
(605) 964-2702

Gr: 3-4 | 62 students Student-teacher ratio: 4:1 Minority enrollment: 97%

Isabel Elementary - 02 (Closed 2010)

504 N Taft
Isabel, SD 57633
(605) 466-2125

Gr: K-6 | 38 students Student-teacher ratio: 8:1 Minority enrollment: 26%

Isabel High School - 01 (Closed 2010)

504 N Taft
Isabel, SD 57633
(605) 466-2125

Gr: 9-12 | 27 students Student-teacher ratio: 7:1 Minority enrollment: 41%

Isabel Junior High - 03 (Closed 2010)

504 N Taft
Isabel, SD 57633
(605) 466-2125

Gr: 7-8 | 10 students Student-teacher ratio: 5:1 Minority enrollment: 40%

Northwest Area Ed Cooperative - 01 (Closed 2023)

Alternative School

503 N Main
Isabel, SD 57633
(605) 466-2206

Gr: K-12

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).