For the 2025-26 school year, there are 2 private schools serving 109 students in Lake County, SD (there are 15 public schools, serving 2,041 public students). 5% of all K-12 students in Lake County, SD are educated in private schools (compared to the SD state average of 9%).
The top ranked private school in Lake County, SD is St. Thomas School.
The average acceptance rate is 100%, which is higher than the South Dakota private school average acceptance rate of 76%.
Top Ranked Lake County Private Schools (2025-26)
School
Location
Quick Facts
St. Thomas School
(Catholic)
401 N Van Eps Ave
Madison, SD 57042
(605) 256-4419
Madison, SD 57042
(605) 256-4419
Gr: PK-5 | 74 students Tuition listed
Madison Christian School
(Christian)
45369 234th St
Madison, SD 57042
(605) 427-0109
Madison, SD 57042
(605) 427-0109
Gr: PK-4 | 35 students Tuition & acceptance rate listed
Frequently Asked Questions
What are the top ranked private schools in Lake County, SD?
The top ranked private schools in Lake County, SD is St. Thomas School.
How many private schools are located in Lake County?
2 private schools are located in Lake County.
What percentage of students in Lake County go to private school?
5% of all K-12 students in Lake County are educated in private schools (compared to the SD state average of 9%).
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