For the 2026-27 school year, there are 4 public schools serving 345 students in Castlewood, SD.
The top-ranked public schools in Castlewood, SD are Castlewood Elementary - 02, Claremont Colony Elementary - 04 and Castlewood High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Castlewood, SD public schools have an average math proficiency score of 52% (versus the South Dakota public school average of 43%), and reading proficiency score of 52% (versus the 51% statewide average). Schools in Castlewood have an average ranking of 7/10, which is in the top 50% of South Dakota public schools.
Minority enrollment is 8% of the student body (majority Hispanic), which is less than the South Dakota public school average of 34% (majority American Indian).
Best Public Schools in Castlewood, SD (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Castlewood Elementary - 02
(Math: 60-64% | Reading: 50-54%)
Rank:
Rank:
8/
Top 30%10
310 E Harry St
Castlewood, SD 57223
(605) 793-2497
Castlewood, SD 57223
(605) 793-2497
Gr: PK-5 | 140 students Student-teacher ratio: 13:1 Minority enrollment: 6%
Rank: #22.
Claremont Colony Elementary - 04
(Math: <50% | Reading: <50%)
Rank:
Rank:
6/
Top 50%10
46271 184th St
Castlewood, SD 57223
(605) 793-2497
Castlewood, SD 57223
(605) 793-2497
Gr: K-8 | 17 students Student-teacher ratio: 17:1
Rank: #33.
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 | 112 students Student-teacher ratio: 16:1 Minority enrollment: 9%
Rank: #44.
Castlewood Middle School - 03
(Math: 40-44% | Reading: 50-54%)
Rank:
Rank:
5/
Bottom 50%10
310 E Harry St
Castlewood, SD 57223
(605) 793-2497
Castlewood, SD 57223
(605) 793-2497
Gr: 6-8 | 76 students Student-teacher ratio: 19:1 Minority enrollment: 9%
Frequently Asked Questions
What are the top-ranked public schools in Castlewood, SD?
The top-ranked public schools in Castlewood, SD include Castlewood Elementary - 02, Claremont Colony Elementary - 04 and Castlewood High School - 01.
How many public schools are located in Castlewood?
4 public schools are located in Castlewood.
What is the racial composition of students in Castlewood?
Castlewood public schools minority enrollment is 8% of the student body (majority Hispanic), which is less than the South Dakota public schools average of 34% (majority American Indian).
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