Enrollment
112
South Dakota · 2024-25 NCES data
High school (grades 9-12) · Castlewood, SD
Castlewood High School - 01
Federal NCES profile for Castlewood High School - 01, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 461128000114
👥 S:T ratio 36
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 78
📋 Attendance 55
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castlewood High School - 01 earns 42/100 on the Resource Investment Index, with class sizes larger than 78% of South Dakota schools.
- #4 of 4
- public schools in Castlewood · Resource Index
- 42
- Resource Index · Typical
- 16:1
- large classes for South Dakota
- 6.6%
- free-lunch eligible
Castlewood High School - 01 has class sizes larger than 78% of South Dakota schools. Computed live against every South Dakota school reporting to NCES.
By Resource Investment Index, Castlewood High School - 01 ranks #4 of 4 public schools in Castlewood, SD.
School address
District: Castlewood School District 28-1 · South Dakota
NCES ID 461128000114 Verify on NCES CCD record →
Teachers (FTE)
7.0
Federal CCD staff survey
Students per teacher
16:1
vs 13.6:1 South Dakota avg
+18% vs state
Free-lunch eligible
6.6%
vs 28.8% South Dakota avg
-77% vs state
Student-teacher ratio in context
How Castlewood High School - 01 compares with South Dakota and U.S. medians
What stands out at Castlewood High School - 01
Castlewood High School - 01 is a lower-poverty, mid-sized high school in Castlewood, South Dakota, enrolling 112 students.
Class loads run somewhat heavier than typical: 16:1 puts it in the larger third of South Dakota schools by student-teacher ratio.
Comparatively few students face economic hardship here, 6.6% free-meal eligibility runs 77% below the South Dakota average.
With 112 students, its enrollment sits close to the South Dakota median campus size.
Its Resource Investment Index sits near the middle of the pack among 691 scored South Dakota schools.
Against 132 statewide peers matched on enrollment and economic need, it ranks mid-pack at #65.
Its student body is predominantly White (91% of enrollment) (diversity index 17/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 112 students per counselor, inside the American School Counselor Association's recommended 250:1.
17.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Castlewood School District 28-1 spends $9,844 per pupil, 27% below the South Dakota average, a leaner-resourced district than most.
Its district draws 23.7% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Castlewood School District 28-1 also operates Castlewood Elementary - 02 (140 students) and Castlewood Middle School - 03 (76 students) alongside Castlewood High School - 01.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Castlewood High School - 01 compares
Castlewood High School - 01 on the metrics families compare, against South Dakota and U.S. means.
| Metric | This school | vs South Dakota | South Dakota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16:1 | ▲ 18% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 6.6% | ▼ 77% | 28.8% | 51.7% |
| Enrollment | 112 | top 45% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16:1
Leaner classes than 38% of US schools, a middle-of-the-pack class size.
112
Bigger than 11% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
6.6%
free-lunch eligible
- 77% below the South Dakota average of 28.8%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16:1
students per teacher
- 18% above state mean
Top 78% in South Dakota - lower ratio than 22% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
17.9%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$9,844
per pupil, district-wide
- below South Dakota avg of $13,477
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 112 students, the combined health-and-guidance staffing load for this school.
Discipline context
8
in-school suspensions + 0 out-of-school
Suspension rate: 7.1 per 100 students. Combined in-school and out-of-school rate: 7.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 91.1%
Hispanic or Latino 6.3%
Two or More 2.7%
Largest group: White at 91.1% of enrollment.
Student-body diversity index 16.5/100
Simpson diversity index - at 16.5, Castlewood High School - 01 is less mixed than the South Dakota school average of 27.6.
Programs
AP program Not offered
Funding & spending
District-wide per-pupil expenditure for Castlewood School District 28-1, which includes Castlewood High School - 01.
$9,844
Per student
-27%
vs South Dakota
Avg $13,477
-41%
vs U.S.
Avg $16,593
Revenue mix
Local 40.4%
State 35.8%
Federal 23.7%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Castlewood High School - 01 Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Castlewood Elementary - 02 | Larger | Similar economic need | Lower S:T ratio |
| Castlewood Middle School - 03 | Smaller | Similar economic need | Higher S:T ratio |
| Claremont Colony Elementary - 04 | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Castlewood High School - 01's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 140
- Students per teacher
- 14:1
- Resource Index
- 53/100
- Enrollment
- 76
- Students per teacher
- 19:1
- Resource Index
- 53/100
- Enrollment
- 17
- Students per teacher
- 17:1
- Resource Index
- 53/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of South Dakota, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~112 students)
Next steps
Verify locally before acting on Castlewood High School - 01's federal record.
- Compare Castlewood High School - 01 against another school. Compare schools
- Castlewood School District 28-1's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Castlewood High School - 01
How many students attend Castlewood High School - 01?
Castlewood High School - 01 has 112 students enrolled. It is a high school in Castlewood, SD.
What is the student-teacher ratio at Castlewood High School - 01?
The student-teacher ratio at Castlewood High School - 01 is 16:1, which is 18% higher than the South Dakota average of 13.6:1 and 2% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Castlewood High School - 01?
6.6% of students at Castlewood High School - 01 are eligible for free lunch, compared to the South Dakota average of 28.8%.
What is the racial and ethnic makeup of Castlewood High School - 01?
The largest demographic group at Castlewood High School - 01 is White at 91.1% of enrollment, in Castlewood, SD.
What is the Resource Investment Index for Castlewood High School - 01?
Castlewood High School - 01 has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castlewood High School - 01 rank among public schools in Castlewood?
By Resource Investment Index, Castlewood High School - 01 ranks #4 of 4 public schools in Castlewood, SD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Castlewood on the city page.
Is Castlewood High School - 01 a good school?
Castlewood High School - 01 earns 42/100 on the Resource Investment Index, with class sizes larger than 78% of South Dakota schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Castlewood School District 28-1?
Besides Castlewood High School - 01, Castlewood School District 28-1 also operates Castlewood Elementary - 02 (140 students), Castlewood Middle School - 03 (76 students), and Claremont Colony Elementary - 04 (17 students). See the Castlewood School District 28-1 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.