Enrollment
227
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Naperville, IL
Ellsworth Elem School
Federal NCES profile for Ellsworth Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataElementary school (grades K-5)NCES 172771002930
👥 S:T ratio 55
🌟 Gifted program 30
📋 Attendance 47
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ellsworth Elem School earns 44/100 on the Resource Investment Index, with class sizes smaller than 79% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #19 of 27
- elementary schools in Naperville · Resource Index
- 44
- Resource Index · Typical
- 11.3:1
- small classes for Illinois
- 227
- students enrolled
Ellsworth Elem School has class sizes smaller than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Ellsworth Elem School ranks #19 of 27 elementary schools in Naperville, IL.
School address
District: Naperville Cusd 203 · Illinois
NCES ID 172771002930 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
11.3:1
vs 14:1 Illinois avg
-19% vs state
Student-teacher ratio in context
How Ellsworth Elem School compares with Illinois and U.S. medians
What stands out at Ellsworth Elem School
Small campus with unusually lean teacher staffing
Ellsworth Elem School sits near the smaller end of the Illinois enrollment distribution while also reporting a lower student-teacher ratio than most state schools. That pairing is consistent with a compact, teacher-dense setting, though small scale can limit the number of specialized courses or support roles a campus can sustain. The program and staffing sections below show whether the lean ratio extends beyond classroom teachers into broader student services.
No single support indicator dominates
Ellsworth Elem School's available federal support indicators do not reveal an extreme in advanced-course access, specialist staffing, chronic absence, or IDEA enrollment. The most responsible reading is therefore component by component rather than a sweeping verdict: current counseling availability, health support, program schedules, and attendance policy still warrant direct confirmation. Missing or middle-range federal fields are not evidence that services are either strong or weak.
Ellsworth Elem School is a mid-sized elementary school in Naperville, Illinois, enrolling 227 students.
Class sizes run a bit leaner than typical: 11.3:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 227 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (55%) and Hispanic or Latino (14%), more mixed than most schools in the state (diversity index 65/100).
Attendance runs somewhat below the norm, with 21.1% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Naperville Cusd 203 spends $22,199 per pupil, 22% above the Illinois average, a better-resourced district than most.
Among Naperville's elementary schools, it stands alongside Elmwood Elem School (726 students): Ellsworth Elem School is smaller than that campus by headcount and runs leaner classes (11.3:1 vs 16.1:1).
Naperville Cusd 203 also operates Naperville Central High School (2,589 students) and Naperville North High School (2,467 students) alongside Ellsworth Elem 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 Ellsworth Elem School compares
Ellsworth Elem 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 | 11.3:1 | ▼ 19% | 14:1 | 15.7:1 |
| Enrollment | 227 | top 78% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.3:1
Leaner classes than 81% of US schools, among the more generously staffed nationally.
227
Bigger than 23% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
11.3:1
students per teacher
- 19% below state mean
Top 21% in Illinois - lower ratio than 79% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
21.1%
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 54.6%
Hispanic or Latino 14.1%
Two or More 13.2%
Asian 12.8%
African American 5.3%
Largest group: White at 54.6% of enrollment.
Student-body diversity index 64.5/100
Simpson diversity index - at 64.5, Ellsworth Elem School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Naperville Cusd 203, which includes Ellsworth Elem 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 Ellsworth Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Naperville Central High School | Larger | No free-lunch data | Higher S:T ratio |
| Naperville North High School | Larger | No free-lunch data | Higher S:T ratio |
| Kennedy Junior High School | Larger | No free-lunch data | Higher S:T ratio |
| Jefferson Jr High School | Larger | No free-lunch data | Higher S:T ratio |
| Lincoln Jr High School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Ellsworth Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,589
- Students per teacher
- 14.6:1
- Resource Index
- 41/100
- Enrollment
- 2,467
- Students per teacher
- 13.5:1
- Resource Index
- 36/100
- 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
Similar elementary schools in Naperville
6 comparable elementary schools (grades K-5) serving the same city.
Elmwood Elem School
Standard public school
726 students 16.1:1 students per teacher
May Watts Elementary School
Standard public school
668 students 19.1:1 students per teacher
Steeple Run Elem School
Standard public school
622 students 13.2:1 students per teacher
Beebe Elem School
Standard public school
619 students 14.1:1 students per teacher
Mill Street Elem School
Standard public school
600 students 12.8:1 students per teacher
Mary Lou Cowlishaw Elementary
Standard public school
589 students 13.7:1 students per teacher
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~227 students)
Next steps
Verify locally before acting on Ellsworth Elem School's federal record.
- Compare Ellsworth Elem School against another school. Compare schools
- Naperville Cusd 203'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 Ellsworth Elem School
How many students attend Ellsworth Elem School?
Ellsworth Elem School has 227 students enrolled. It is an elementary school in Naperville, IL.
What is the student-teacher ratio at Ellsworth Elem School?
The student-teacher ratio at Ellsworth Elem School is 11.3:1, which is 19% lower than the Illinois average of 14:1 and 28% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Ellsworth Elem School?
The largest demographic group at Ellsworth Elem School is White at 54.6% of enrollment, in Naperville, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.5/100.
What is the Resource Investment Index for Ellsworth Elem School?
Ellsworth Elem School has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ellsworth Elem School rank among elementary schools in Naperville?
By Resource Investment Index, Ellsworth Elem School ranks #19 of 27 elementary 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 elementary schools in Naperville on the city page.
What other schools are in Naperville Cusd 203?
Besides Ellsworth Elem School, Naperville Cusd 203 also operates Naperville Central High School (2,589 students), Naperville North High School (2,467 students), and Kennedy Junior High School (937 students). See the Naperville Cusd 203 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, the data changelog, or report a data error. Data current as of August 2026.