For the 2026 school year, there are 3 public high schools serving 739 students in Lake County, SD.
The top-ranked public high schools in Lake County, SD are Chester High School - 01 and Madison High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Lake County, SD public high schools have an average math proficiency score of 44% (versus the South Dakota public high school average of 40%), and reading proficiency score of 60% (versus the 63% statewide average). High schools in Lake County have an average ranking of 6/10, which is in the top 50% of South Dakota public high schools.
Lake County, SD public high school have a Graduation Rate of 66%, which is less than the South Dakota average of 82%.
The school with highest graduation rate is Madison High School - 01, with 85-89% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.
Minority enrollment is 10% of the student body (majority Hispanic), which is less than the South Dakota public high school average of 36% (majority American Indian).
Best Public High Schools in Lake County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Chester High School - 01
(Math: 40-59% | Reading: 70-79%)
Rank:
Rank:
9/
Top 20%10
102 2nd Ave
Chester, SD 57016
(605) 489-2411
Chester, SD 57016
(605) 489-2411
Gr: 9-12 | 107 students Student-teacher ratio: 11:1 Minority enrollment: 5%
Rank: #22.
Madison High School - 01
(Math: 40-44% | Reading: 55-59%)
Rank:
Rank:
6/
Top 50%10
800 Ne 9th St
Madison, SD 57042
(605) 256-7706
Madison, SD 57042
(605) 256-7706
Gr: 9-12 | 384 students Student-teacher ratio: 15:1 Minority enrollment: 16%
Rank: n/an/a
102 School St
Rutland, SD 57057
(605) 586-4352
Rutland, SD 57057
(605) 586-4352
Gr: 9-12 | 77 students Student-teacher ratio: 11:1 Minority enrollment: 7%
Frequently Asked Questions
What are the top-ranked public high schools in Lake County, SD?
The top-ranked public high schools in Lake County, SD include Chester High School - 01 and Madison High School - 01.
How many public high schools are located in Lake County?
5 public high schools are located in Lake County.
What is the racial composition of students in Lake County?
Lake County public high schools minority enrollment is 10% of the student body (majority Hispanic), which is less than the South Dakota public high schools average of 36% (majority American Indian).
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