- Enrollment
- 2,467
- Students per teacher
- 13.5:1
- Resource Index
- 36/100
High school (grades 9-12) · Naperville, IL
Naperville Central High School
Federal NCES profile for Naperville Central High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 172771002939
👥 S:T ratio 42
🌟 Gifted program 30
🎓 Counselors 53
📋 Attendance 41
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Naperville Central High School earns 41/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois.
- #2 of 3
- high schools in Naperville · Resource Index
- 41
- Resource Index · Typical
- 14.6:1
- students per teacher
- 2,589
- students enrolled
Naperville Central High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Naperville Central High School ranks #2 of 3 high schools in Naperville, IL.
School address
District: Naperville Cusd 203 · Illinois
NCES ID 172771002939 Verify on NCES CCD record →
NCES CCD universe card
School universe 172771002939 · Naperville, IL High · LARGE · TRAD
2,589 enr · 14.6:1 · RII 41
Nearest enrollment peer: Naperville North High School (2,467 students)
Resource Investment Index #2 of 3 high schools in Naperville. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
Naperville Central High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Naperville Central High School
2,589 students
- Naperville Nor
Naperville North High School
2,467 students
- Kennedy Junior 937
Kennedy Junior High School
937 students
- Jefferson Jr H 832
Jefferson Jr High School
832 students
- Lincoln Jr Hig 774
Lincoln Jr High School
774 students
- Elmwood Elem S 726
Elmwood Elem School
726 students
What this shows Naperville Central High School reports 2,589 students on the CCD universe file.
How Naperville Central High School compares
Naperville 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 | 14.6:1 | ▲ 4% | 14:1 | 15.7:1 |
| Enrollment | 2,589 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.6:1
Leaner classes than 51% of US schools, a middle-of-the-pack class size.
2,589
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
14.6:1
students per teacher
- 4% above state mean
Top 64% in Illinois - lower ratio than 36% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
23.6%
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
$22,199
per pupil, district-wide
- above Illinois avg of $18,196
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors11.0 FTE
Per 235 students, the combined health-and-guidance staffing load for this school.
Discipline context
67
in-school suspensions + 50 out-of-school
Suspension rate: 2.6 per 100 students. Combined in-school and out-of-school rate: 4.5 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 61.6%
Asian 18.1%
Hispanic or Latino 10.2%
Two or More 5.3%
African American 4.6%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 61.6% of enrollment.
Student-body diversity index 57.2/100
Simpson diversity index - at 57.2, Naperville Central High School is more mixed than the Illinois school average of 38.9.
Programs
AP courses offered 30
Funding & spending
District-wide per-pupil expenditure for Naperville Cusd 203, which includes Naperville Central High School.
$22,199
Per student
+22%
vs Illinois
Avg $18,196
+26%
vs U.S.
Avg $17,658
Revenue mix
Local 69.9%
State 25.6%
Federal 4.4%
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 Naperville Central High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Naperville North High School | Similar size | No free-lunch data | Similar S:T ratio |
| Kennedy Junior High School | Smaller | No free-lunch data | Similar S:T ratio |
| Jefferson Jr High School | Smaller | No free-lunch data | Lower S:T ratio |
| Lincoln Jr High School | Smaller | No free-lunch data | Similar S:T ratio |
| Elmwood Elem School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Naperville Central High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 937
- Students per teacher
- 14.4:1
- Resource Index
- 54/100
- Enrollment
- 832
- Students per teacher
- 12.8:1
- Resource Index
- 42/100
- Enrollment
- 774
- Students per teacher
- 13.8:1
- Resource Index
- 44/100
- Enrollment
- 726
- Students per teacher
- 16.1:1
- Resource Index
- 41/100
Similar high schools in Naperville
2 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 (~2,589 students)
Frequently asked questions about Naperville Central High School
How many students attend Naperville Central High School?
Naperville Central High School has 2,589 students enrolled. It is a high school in Naperville, IL.
What is the student-teacher ratio at Naperville Central High School?
The student-teacher ratio at Naperville Central High School is 14.6:1, which is 4% higher than the Illinois average of 14:1 and 7% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Naperville Central High School?
The largest demographic group at Naperville Central High School is White at 61.6% of enrollment, in Naperville, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.2/100.
What is the Resource Investment Index for Naperville Central High School?
Naperville Central High School has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Naperville Central High School rank among high schools in Naperville?
By Resource Investment Index, Naperville Central High School ranks #2 of 3 high schools in Naperville, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Naperville on the city page.
What other schools are in Naperville Cusd 203?
Besides Naperville Central High School, Naperville Cusd 203 also operates Naperville North High School (2,467 students), Kennedy Junior High School (937 students), and Jefferson Jr High School (832 students). See the Naperville Cusd 203 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.