For the 2025-26 school year, there are 4 public schools serving 338 students in 57223, SD.
The top ranked public schools in 57223, 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.
ÎÛÎÛÂþ» schools in zipcode 57223 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 57223, SD have an average ranking of 7/10, which is in the top 50% of South Dakota public schools.
Minority enrollment is 7% of the student body (majority Hispanic), which is less than the South Dakota public school average of 33% (majority American Indian).
Best 57223, SD ÎÛÎÛÂþ» Schools (2025-26)
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 | 144 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 | 15 students Student-teacher ratio: 15:1
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 | 106 students Student-teacher ratio: 15:1 Minority enrollment: 8%
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 | 73 students Student-teacher ratio: 18:1 Minority enrollment: 8%
Frequently Asked Questions
What are the top ranked public schools in 57223, SD?
The top ranked public schools in 57223, SD include Castlewood Elementary - 02, Claremont Colony Elementary - 04 and Castlewood High School - 01.
How many public schools are located in 57223?
4 public schools are located in 57223.
What is the racial composition of students in 57223?
57223 public schools minority enrollment is 7% of the student body (majority Hispanic), which is less than the South Dakota public schools average of 33% (majority American Indian).
Recent Articles

Texas Schools Enrollment Trends & Policy in 2025
Latest data and policy changes on Texas public school enrollment growth, funding, and virtual education in 2025.

Financial Aid & Hidden Costs in ÎÛÎÛÂþ» Schools
Learn about financial aid and hidden costs in public schools. Discover what parents should budget for beyond tuition-free education.

NYC Schools Still Most Segregated in 2025
Despite reforms, New York City schools remain the most segregated in the U.S. in 2025. Here’s what parents and educators need to know.