- Enrollment
- 3,451
- Students per teacher
- 20.5:1
- Resource Index
- 26/100
High school (grades 9-12) · Joliet, IL
Joliet Central High School
Federal NCES profile for Joliet Central High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 31/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 172061002350
👥 S:T ratio 28
🌟 Gifted program 30
🎓 Counselors 34
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Joliet Central High School earns 31/100 on the Resource Investment Index, with class sizes larger than 91% of Illinois schools. It is also one of the largest schools in Illinois.
- #16 of 31
- public schools in Joliet · Resource Index
- 31
- Resource Index · Lower
- 17.9:1
- large classes for Illinois
- 3,295
- students enrolled
Joliet Central High School has class sizes larger than 91% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Joliet Central High School ranks #16 of 31 public schools in Joliet, IL.
School address
District: Joliet Twp Hsd 204 · Illinois
NCES ID 172061002350 Verify on NCES CCD record →
NCES CCD universe card
School universe 172061002350 · Joliet, IL High · LARGE · TRAD
3,295 enr · 17.9:1 · RII 31
Nearest enrollment peer: Joliet West High School (3,451 students)
Resource Investment Index #16 of 31 public schools in Joliet. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
How Joliet Central High School compares
Joliet Central High School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.9:1 | ▲ 28% | 14:1 | 15.7:1 |
| Enrollment | 3,295 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.9:1
Leaner classes than 25% of US schools, heavier class loads than most.
3,295
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
17.9:1
students per teacher
- 28% above state mean
Top 91% in Illinois - lower ratio than 9% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$19,282
per pupil, district-wide
- above Illinois avg of $18,196
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors10.0 FTE
Per 330 students, the combined health-and-guidance staffing load for this school.
Discipline context
503
in-school suspensions + 261 out-of-school
Suspension rate: 15.3 per 100 students. Combined in-school and out-of-school rate: 23.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 9 expulsions.
Student demographics
Hispanic or Latino 72.7%
African American 14.6%
White 10.4%
Two or More 2.0%
Asian 0.2%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 72.7% of enrollment.
Student-body diversity index 43.9/100
Simpson diversity index - at 43.9, Joliet Central High School is more mixed than the Illinois school average of 38.9.
Programs
AP courses offered 18
Funding & spending
District-wide per-pupil expenditure for Joliet Twp Hsd 204, which includes Joliet Central High School.
$19,282
Per student
+6%
vs Illinois
Avg $18,196
+9%
vs U.S.
Avg $17,658
Revenue mix
Local 63.7%
State 28.6%
Federal 7.7%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Joliet Central High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Joliet West High School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Joliet Central High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
Similar high schools in Joliet
1 comparable high schools (grades 9-12) serving the same city.
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~3,295 students)
Frequently asked questions about Joliet Central High School
How many students attend Joliet Central High School?
Joliet Central High School has 3,295 students enrolled. It is a high school in Joliet, IL.
What is the student-teacher ratio at Joliet Central High School?
The student-teacher ratio at Joliet Central High School is 17.9:1, which is 28% higher than the Illinois average of 14:1 and 14% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Joliet Central High School?
The largest demographic group at Joliet Central High School is Hispanic or Latino at 72.7% of enrollment, in Joliet, IL.
What is the Resource Investment Index for Joliet Central High School?
Joliet Central High School has a Resource Investment Index of 31/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Joliet Central High School rank among public schools in Joliet?
By Resource Investment Index, Joliet Central High School ranks #16 of 31 public schools in Joliet, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Joliet on the city page.
What other schools are in Joliet Twp Hsd 204?
Besides Joliet Central High School, Joliet Twp Hsd 204 also operates Joliet West High School (3,451 students). See the Joliet Twp Hsd 204 district page for the complete list.
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, the data changelog, or report a data error. Data current as of August 2026.