Enrollment
641
Indiana · 2024-25 NCES data
Middle school (grades 6-8) · Newburgh, IN
Castle South Middle School
Federal NCES profile for Castle South Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 181239002454
👥 S:T ratio 34
🌟 Gifted program 70
🎓 Counselors 36
📋 Attendance 39
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castle South Middle School earns 45/100 on the Resource Investment Index, with class sizes near the Indiana median.
- #4 of 8
- public schools in Newburgh · Resource Index
- 45
- Resource Index · Typical
- 16.4:1
- students per teacher
- 29.1%
- free-lunch eligible
Castle South Middle School has class sizes near the Indiana median. Computed live against every Indiana school reporting to NCES.
By Resource Investment Index, Castle South Middle School ranks #4 of 8 public schools in Newburgh, IN.
School address
District: Warrick County School Corp · Indiana
NCES ID 181239002454 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
16.4:1
vs 15.9:1 Indiana avg
+3% vs state
Free-lunch eligible
29.1%
vs 49.5% Indiana avg
-41% vs state
Student-teacher ratio in context
How Castle South Middle School compares with Indiana and U.S. medians
What stands out at Castle South Middle School
Castle South Middle School is a mid-sized middle school in Newburgh, Indiana, enrolling 641 students.
Class loads run somewhat heavier than typical: 16.4:1 puts it in the larger third of Indiana schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 29.1% of students eligible for free meals.
Enrollment of 641 puts it in the larger third of Indiana schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,862 scored Indiana schools.
Against 401 statewide peers matched on enrollment and economic need, it ranks mid-pack at #245.
Its student body is predominantly White (80% of enrollment) (diversity index 35/100).
Counselor coverage runs a bit thin, about 321 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 24.3% of students chronically absent per the 2021-22 civil-rights collection.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among Newburgh's middle schools, it stands alongside Castle North Middle School (758 students): Castle South Middle School is smaller than that campus by headcount and runs leaner classes (16.4:1 vs 18.9:1).
Warrick County School Corp also operates Castle High School (1,953 students) and John H Castle Elementary School (965 students) alongside Castle South Middle School.
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 Castle South Middle School compares
Castle South Middle School on the metrics families compare, against Indiana and U.S. means.
| Metric | This school | vs Indiana | Indiana avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.4:1 | ▲ 3% | 15.9:1 | 15.7:1 |
| Free-lunch eligible | 29.1% | ▼ 41% | 49.5% | 51.7% |
| Enrollment | 641 | top 23% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.4:1
Leaner classes than 35% of US schools, a middle-of-the-pack class size.
641
Bigger than 76% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
29.1%
free-lunch eligible
- 41% below the Indiana average of 49.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16.4:1
students per teacher
- 3% above state mean
Top 63% in Indiana - lower ratio than 37% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
24.3%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$11,200
per pupil, district-wide
- below Indiana avg of $12,079
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 321 students, the combined health-and-guidance staffing load for this school.
Discipline context
18
in-school suspensions + 82 out-of-school
Suspension rate: 2.8 per 100 students. Combined in-school and out-of-school rate: 15.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
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 80.3%
Two or More 7.3%
Hispanic or Latino 5.3%
African American 4.2%
Asian 2.3%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 80.3% of enrollment.
Student-body diversity index 34.5/100
Simpson diversity index - at 34.5, Castle South Middle School is less mixed than the Indiana school average of 39.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Warrick County School Corp, which includes Castle South Middle School.
$11,200
Per student
-7%
vs Indiana
Avg $12,079
-33%
vs U.S.
Avg $16,593
Revenue mix
Local 24.1%
State 64.9%
Federal 11.0%
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 Castle South Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Castle High School | Larger | Similar economic need | Higher S:T ratio |
| John H Castle Elementary School | Larger | Lower economic need | Higher S:T ratio |
| Boonville High School | Larger | Similar economic need | Lower S:T ratio |
| Castle North Middle School | Similar size | Similar economic need | Higher S:T ratio |
| Sharon Elementary School | Similar size | Higher economic need | Higher S:T ratio |
Comparisons are relative to Castle South Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,953
- Students per teacher
- 18.8:1
- Resource Index
- 46/100
- Enrollment
- 965
- Students per teacher
- 20.1:1
- Resource Index
- 45/100
- Enrollment
- 892
- Students per teacher
- 14.6:1
- Resource Index
- 47/100
- Enrollment
- 758
- Students per teacher
- 18.9:1
- Resource Index
- 52/100
- Enrollment
- 724
- Students per teacher
- 18.6:1
- Resource Index
- 45/100
Similar middle schools in Newburgh
1 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Indiana, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~641 students)
Similar student-teacher ratio (~16.4:1)
Next steps
Verify locally before acting on Castle South Middle School's federal record.
- Compare Castle South Middle School against another school. Compare schools
- Warrick County School Corp'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 Castle South Middle School
How many students attend Castle South Middle School?
Castle South Middle School has 641 students enrolled. It is a middle school in Newburgh, IN.
What is the student-teacher ratio at Castle South Middle School?
The student-teacher ratio at Castle South Middle School is 16.4:1, which is 3% higher than the Indiana average of 15.9:1 and 4% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Castle South Middle School?
29.1% of students at Castle South Middle School are eligible for free lunch, compared to the Indiana average of 49.5%.
What is the racial and ethnic makeup of Castle South Middle School?
The largest demographic group at Castle South Middle School is White at 80.3% of enrollment, in Newburgh, IN.
What is the Resource Investment Index for Castle South Middle School?
Castle South Middle School has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castle South Middle School rank among public schools in Newburgh?
By Resource Investment Index, Castle South Middle School ranks #4 of 8 public schools in Newburgh, IN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Newburgh on the city page.
Is Castle South Middle School a good school?
Castle South Middle School earns 45/100 on the Resource Investment Index, with class sizes near the Indiana median. 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 Warrick County School Corp?
Besides Castle South Middle School, Warrick County School Corp also operates Castle High School (1,953 students), John H Castle Elementary School (965 students), and Boonville High School (892 students). See the Warrick County School Corp 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.