For the 2026 school year, there is 1 public high school serving 106 students in Castlewood, SD.
The top-ranked public high school in Castlewood, SD is Castlewood High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Castlewood, SD public high school have an average math proficiency score of 50% (versus the South Dakota public high school average of 40%), and reading proficiency score of 50% (versus the 63% statewide average). High schools in Castlewood have an average ranking of 6/10, which is in the top 50% of South Dakota public high schools.
Castlewood, SD public high school have a Graduation Rate of 50%, which is less than the South Dakota average of 82%.
The school with highest graduation rate is Castlewood High School - 01, with ≥50% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.
Minority enrollment is 8% 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 Castlewood, SD (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Castlewood High School - 01
(Math: 40-59% | Reading: ≥50%)
Rank:
Rank:
5/
Bottom 50%10
310 E Harry St
Castlewood, SD 57223
(605) 793-2497
Castlewood, SD 57223
(605) 793-2497
Gr: 9-12 | 106 students Student-teacher ratio: 15:1 Minority enrollment: 8%
Frequently Asked Questions
What are the top-ranked public high schools in Castlewood, SD?
The top-ranked public high schools in Castlewood, SD include Castlewood High School - 01.
How many public high schools are located in Castlewood?
1 public high schools are located in Castlewood.
What is the racial composition of students in Castlewood?
Castlewood public high schools minority enrollment is 8% 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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