Enrollment
528
Indiana · 2024-25 NCES data
High school (grades 9-12) · Sullivan, IN
Sullivan High School
Federal NCES profile for Sullivan High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 60/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 181086001773
👥 S:T ratio 47
📚 AP courses 85
🌟 Gifted program 70
🎓 Counselors 47
📋 Attendance 49
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sullivan High School earns 60/100 on the Resource Investment Index, with class sizes smaller than 78% of Indiana schools. It is also less racially and ethnically mixed than most Indiana schools.
- #3 of 4
- public schools in Sullivan · Resource Index
- 60
- Resource Index · Higher
- 13.2:1
- small classes for Indiana
- 39.1%
- free-lunch eligible
Sullivan High School has class sizes smaller than 78% of Indiana schools. Computed live against every Indiana school reporting to NCES.
By Resource Investment Index, Sullivan High School ranks #3 of 4 public schools in Sullivan, IN.
School address
District: Southwest School Corporation · Indiana
NCES ID 181086001773 Verify on NCES CCD record →
Teachers (FTE)
40.0
Federal CCD staff survey
Students per teacher
13.2:1
vs 15.9:1 Indiana avg
-17% vs state
Free-lunch eligible
39.1%
vs 49.5% Indiana avg
-21% vs state
Student-teacher ratio in context
How Sullivan High School compares with Indiana and U.S. medians
What stands out at Sullivan High School
Sullivan High School is a mid-sized high school in Sullivan, Indiana, enrolling 528 students.
Class sizes run a bit leaner than typical: 13.2:1 puts it in the smaller third of Indiana schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 39.1% of students eligible for free meals.
With 528 students, its enrollment sits close to the Indiana median campus size.
Its Resource Investment Index lands in the upper third of 1,862 scored Indiana schools.
Against 558 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #128.
Its student body is predominantly White (95% of enrollment), among the less diverse in the state (diversity index 11/100).
On the academic-pipeline side it reports 17 Advanced Placement courses.
Counselor coverage runs a bit thin, about 264 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 20.6% of students chronically absent per the 2021-22 civil-rights collection.
The federal civil-rights collection also records 38 expulsions at this campus for 2021-22.
Southwest School Corporation also operates Sullivan Elementary School (627 students) and Sullivan Middle School (353 students) alongside Sullivan High 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 Sullivan High School compares
Sullivan High 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 | 13.2:1 | ▼ 17% | 15.9:1 | 15.7:1 |
| Free-lunch eligible | 39.1% | ▼ 21% | 49.5% | 51.7% |
| Enrollment | 528 | top 37% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.2:1
Leaner classes than 65% of US schools, a middle-of-the-pack class size.
528
Bigger than 65% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
39.1%
free-lunch eligible
- 21% 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
13.2:1
students per teacher
- 17% below state mean
Top 22% in Indiana - lower ratio than 78% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
20.6%
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
$12,485
per pupil, district-wide
- above 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 264 students, the combined health-and-guidance staffing load for this school.
Discipline context
7
in-school suspensions + 35 out-of-school
Suspension rate: 1.3 per 100 students. Combined in-school and out-of-school rate: 8.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 38 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 94.5%
Hispanic or Latino 2.7%
Two or More 2.3%
African American 0.2%
Asian 0.2%
American Indian / Alaska Native 0.2%
Largest group: White at 94.5% of enrollment.
Student-body diversity index 10.6/100
Simpson diversity index - at 10.6, Sullivan High School is less mixed than the Indiana school average of 39.0.
Programs
AP courses offered 17
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Southwest School Corporation, which includes Sullivan High School.
$12,485
Per student
+3%
vs Indiana
Avg $12,079
-25%
vs U.S.
Avg $16,593
Revenue mix
Local 31.5%
State 57.0%
Federal 11.5%
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 Sullivan High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sullivan Elementary School | Similar size | Similar economic need | Higher S:T ratio |
| Sullivan Middle School | Smaller | Similar economic need | Higher S:T ratio |
| Carlisle Elementary School | Smaller | Higher economic need | Similar S:T ratio |
| Carlisle Middle School | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Sullivan High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 627
- Students per teacher
- 14.9:1
- Resource Index
- 54/100
- Enrollment
- 353
- Students per teacher
- 22.1:1
- Resource Index
- 38/100
- Enrollment
- 188
- Students per teacher
- 13.4:1
- Resource Index
- 63/100
- Enrollment
- 80
- Students per teacher
- 10:1
- Resource Index
- 68/100
Similar high 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 (~528 students)
Next steps
Verify locally before acting on Sullivan High School's federal record.
- Compare Sullivan High School against another school. Compare schools
- Southwest School Corporation'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 Sullivan High School
How many students attend Sullivan High School?
Sullivan High School has 528 students enrolled. It is a high school in Sullivan, IN.
What is the student-teacher ratio at Sullivan High School?
The student-teacher ratio at Sullivan High School is 13.2:1, which is 17% lower than the Indiana average of 15.9:1 and 16% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Sullivan High School?
39.1% of students at Sullivan High School are eligible for free lunch, compared to the Indiana average of 49.5%.
What is the racial and ethnic makeup of Sullivan High School?
The largest demographic group at Sullivan High School is White at 94.5% of enrollment, in Sullivan, IN.
What is the Resource Investment Index for Sullivan High School?
Sullivan High School has a Resource Investment Index of 60/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sullivan High School rank among public schools in Sullivan?
By Resource Investment Index, Sullivan High School ranks #3 of 4 public schools in Sullivan, 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 Sullivan on the city page.
Is Sullivan High School a good school?
Sullivan High School earns 60/100 on the Resource Investment Index, with class sizes smaller than 78% of Indiana schools. It is also less racially and ethnically mixed than most Indiana 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 Southwest School Corporation?
Besides Sullivan High School, Southwest School Corporation also operates Sullivan Elementary School (627 students), Sullivan Middle School (353 students), and Carlisle Elementary School (188 students). See the Southwest School Corporation 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.