For the 2025-26 school year, there are 5 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, Chester Area Cyber School - 92 and High Plains - 06. 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 35% (majority American Indian).
Best Public High Schools in Lake County (2025-26)
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 | 103 students Student-teacher ratio: 10:1 Minority enrollment: 2%
Rank: #22.
Chester Area Cyber School - 92
(Math: <50% | Reading: ≥50%)
Rank:
Rank:
7/
Top 50%10
500 5th St
Chester, SD 57016
(605) 489-2411
Chester, SD 57016
(605) 489-2411
Gr: 9-12 | 101 students Student-teacher ratio: 17:1
Rank: #33.
High Plains - 06
Alternative School
(Math: <50% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
500 5th St
Chester, SD 57016
(605) 489-2411
Chester, SD 57016
(605) 489-2411
Gr: 9-12 | 61 students Student-teacher ratio: 61:1 Minority enrollment: 6%
Rank: #44.
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 | 397 students Student-teacher ratio: 15:1 Minority enrollment: 15%
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: 8:1 Minority enrollment: 5%
Lake County Public Schools (Closed)
School
Location
Quick Facts
102 School St
Rutland, SD 57057
(605) 586-4352
Rutland, SD 57057
(605) 586-4352
Gr: K-8 | 22 students Student-teacher ratio: 22:1
211 Se 4th St
Madison, SD 57042
(605) 256-7703
Madison, SD 57042
(605) 256-7703
Gr: PK-5 | 94 students Student-teacher ratio: 16:1 Minority enrollment: 5%
23843 446 Ave
Winfred, SD 57076
(605) 256-7721
Winfred, SD 57076
(605) 256-7721
Gr: K-8 | 32 students Student-teacher ratio: 11:1
520 Nw 3rd St
Madison, SD 57042
(605) 256-7714
Madison, SD 57042
(605) 256-7714
Gr: 3-5 | 212 students Minority enrollment: 6%
220 W 2nd St
Ramona, SD 57054
(605) 482-8244
Ramona, SD 57054
(605) 482-8244
Gr: PK-6 | 66 students Student-teacher ratio: 7:1 Minority enrollment: 11%
220 W 2nd St
Ramona, SD 57054
(605) 482-8244
Ramona, SD 57054
(605) 482-8244
Gr: 9-12 | 40 students Student-teacher ratio: 8:1 Minority enrollment: 3%
220 W 2nd St
Ramona, SD 57054
(605) 482-8244
Ramona, SD 57054
(605) 482-8244
Gr: 7-8 | 16 students Student-teacher ratio: 8:1 Minority enrollment: 6%
102 School St
Rutland, SD 57057
(605) 586-4352
Rutland, SD 57057
(605) 586-4352
Gr: PK-5 | 79 students Student-teacher ratio: 10:1 Minority enrollment: 4%
102 School St
Rutland, SD 57057
(605) 586-4352
Rutland, SD 57057
(605) 586-4352
Gr: 9-12 | 40 students Student-teacher ratio: 7:1
102 School St
Rutland, SD 57057
(605) 586-4352
Rutland, SD 57057
(605) 586-4352
Gr: 6-8 | 48 students Student-teacher ratio: 10:1 Minority enrollment: 2%
514 N Washington
Madison, SD 57042
(605) 256-7721
Madison, SD 57042
(605) 256-7721
Gr: K-2 | 254 students Minority enrollment: 6%
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, Chester Area Cyber School - 92 and High Plains - 06.
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 35% (majority American Indian).
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