For the 2025-26 school year, there are 2 public high schools serving 158 students in Clark County, SD.
The top ranked public high schools in Clark County, SD are Willow Lake High School - 01 and Clark High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Clark County, SD public high schools have an average math proficiency score of 32% (versus the South Dakota public high school average of 40%), and reading proficiency score of 50% (versus the 63% statewide average). High schools in Clark County have an average ranking of 2/10, which is in the bottom 50% of South Dakota public high schools.
Clark County, SD public high school have a Graduation Rate of 71%, which is less than the South Dakota average of 82%.
The school with highest graduation rate is Clark 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 11% of the student body (majority Hispanic), which is less than the South Dakota public high school average of 35% (majority American Indian).
Best Public High Schools in Clark County (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Willow Lake High School - 01
(Math: <50% | Reading: ≥50%)
Rank:
Rank:
7/
Top 50%10
400 Garfield Ave
Willow Lake, SD 57278
(605) 625-5945
Willow Lake, SD 57278
(605) 625-5945
Gr: 9-12 | 56 students Student-teacher ratio: 8:1 Minority enrollment: 5%
Rank: #22.
Clark High School - 01
(Math: ≤20% | Reading: 40-59%)
Rank:
Rank:
3/
Bottom 50%10
220 N Clinton St
Clark, SD 57225
(605) 532-3604
Clark, SD 57225
(605) 532-3604
Gr: 9-12 | 102 students Student-teacher ratio: 11:1 Minority enrollment: 15%
Clark County Public Schools (Closed)
School
Location
Quick Facts
43188 Mayfield Rd
Willow Lake, SD 57278
(605) 625-5945
Willow Lake, SD 57278
(605) 625-5945
Gr: 9-12
19087 413th Ave
Willow Lake, SD 57278
(605) 625-5945
Willow Lake, SD 57278
(605) 625-5945
Gr: 9-12 | 2 students
Frequently Asked Questions
What are the top ranked public high schools in Clark County, SD?
The top ranked public high schools in Clark County, SD include Willow Lake High School - 01 and Clark High School - 01.
How many public high schools are located in Clark County?
2 public high schools are located in Clark County.
What is the racial composition of students in Clark County?
Clark County public high schools minority enrollment is 11% of the student body (majority Hispanic), which is less than the South Dakota public high schools average of 35% (majority American Indian).
Recent Articles

School Choice vs. Neighborhood Schools: Key Factors
Explore school choice vs. neighborhood schools in 2025. Learn key factors parents should weigh when deciding the best fit for their child.

Best School Match 2025: Public vs Charter vs Magnet
Compare 2025 public, charter, and magnet school options with updated data, trends, and strategies to find the best fit.

Public School Boundaries and Equity in 2025
Explore how public school boundaries shape access, equity, and opportunity for students in 2025. Learn the impact on families and education policy.