For the 2025 school year, there is 1 public preschool serving 198 students in Dewey County, SD.
The top ranked public preschool in Dewey County, SD is Timber Lake Elementary - 02. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Dewey County, SD public preschool have an average math proficiency score of 72% (versus the South Dakota public pre school average of 45%), and reading proficiency score of 62% (versus the 45% statewide average). Pre schools in Dewey County have an average ranking of 9/10, which is in the top 20% of South Dakota public pre schools.
Minority enrollment is 63% of the student body (majority American Indian), which is more than the South Dakota public preschool average of 34% (majority American Indian and Hispanic).
Best Public Preschools in Dewey County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Timber Lake Elementary - 02
(Math: 70-74% | Reading: 60-64%)
Rank:
Rank:
9/
Top 20%10
500 Main St
Timber Lake, SD 57656
(605) 865-3654
Timber Lake, SD 57656
(605) 865-3654
Grades: PK-5
| 198 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 preschools in Dewey County, SD?
The top ranked public preschools in Dewey County, SD include Timber Lake Elementary - 02.
How many public preschools are located in Dewey County?
1 public preschools are located in Dewey County.
What is the racial composition of students in Dewey County?
Dewey County public preschools minority enrollment is 63% of the student body (majority American Indian), which is more than the South Dakota public preschools average of 34% (majority American Indian and Hispanic).
Recent Articles

Segregation in K-12 Education: Colonial Era
Explore the origins of educational segregation during the colonial era and the differential treatment of Native American, African American, and white students. This article delves into the historical context, policies, and societal attitudes that shaped early education in colonial America, highlighting the disparities and injustices that persisted within the schooling systems of that time.

2011 Classroom Size Update: Are Classes Still Growing Larger?
Since the recession, public school classrooms have seen major budget cuts - and many increases in class sizes. How is the situation in 2011? Read this article to find out.

Will Single Sex Classrooms Save Public Schools?
Learn about the benefits of single sex classrooms and why public schools are hoping this type of classroom will save the American school system.