Enrollment
343
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Naperville, IL
Robert Clow Elem Sch
Federal NCES profile for Robert Clow Elem Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 64/100.
2024-25 NCES dataElementary school (grades K-5)NCES 174169004436
👥 S:T ratio 53
🌟 Gifted program 70
📋 Attendance 69
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Robert Clow Elem Sch earns 64/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #2 of 27
- elementary schools in Naperville · Resource Index
- 64
- Resource Index · Higher
- 11.8:1
- small classes for Illinois
- 343
- students enrolled
Robert Clow Elem Sch has class sizes smaller than 74% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Robert Clow Elem Sch ranks #2 of 27 elementary schools in Naperville, IL.
School address
District: Indian Prairie Cusd 204 · Illinois
NCES ID 174169004436 Verify on NCES CCD record →
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
11.8:1
vs 14:1 Illinois avg
-16% vs state
Student-teacher ratio in context
How Robert Clow Elem Sch compares with Illinois and U.S. medians
What stands out at Robert Clow Elem Sch
Robert Clow Elem Sch is a mid-sized elementary school in Naperville, Illinois, enrolling 343 students.
Class sizes run a bit leaner than typical: 11.8:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
With 343 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index outscores 97% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by White (53%) and Asian (21%), more mixed than most schools in the state (diversity index 65/100).
12.5% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Naperville's elementary schools, it stands alongside Elmwood Elem School (726 students): Robert Clow Elem Sch is smaller than that campus by headcount and runs leaner classes (11.8:1 vs 16.1:1).
Indian Prairie Cusd 204 also operates Neuqua Valley High School (3,018 students) and Waubonsie Valley High School (2,849 students) alongside Robert Clow Elem Sch.
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 Robert Clow Elem Sch compares
Robert Clow Elem Sch on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.8:1 | ▼ 16% | 14:1 | 15.7:1 |
| Enrollment | 343 | top 55% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.8:1
Leaner classes than 77% of US schools, among the more generously staffed nationally.
343
Bigger than 39% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
11.8:1
students per teacher
- 16% below state mean
Top 26% in Illinois - lower ratio than 74% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
12.5%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$17,239
per pupil, district-wide
- above Illinois avg of $17,042
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
1
in-school suspensions + 0 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 0.3 per 100 students. Reported via the Civil Rights Data Collection.
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 53.1%
Asian 21.0%
Hispanic or Latino 13.4%
Two or More 7.6%
African American 4.7%
American Indian / Alaska Native 0.3%
Largest group: White at 53.1% of enrollment.
Student-body diversity index 64.8/100
Simpson diversity index - at 64.8, Robert Clow Elem Sch is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Indian Prairie Cusd 204, which includes Robert Clow Elem Sch.
$17,239
Per student
+1%
vs Illinois
Avg $17,042
+4%
vs U.S.
Avg $16,593
Revenue mix
Local 64.4%
State 30.8%
Federal 4.8%
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 Robert Clow Elem Sch Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Neuqua Valley High School | Larger | No free-lunch data | Higher S:T ratio |
| Waubonsie Valley High School | Larger | No free-lunch data | Higher S:T ratio |
| Metea Valley High School | Larger | No free-lunch data | Higher S:T ratio |
| Francis Granger Middle School | Larger | No free-lunch data | Higher S:T ratio |
| Scullen Middle School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Robert Clow Elem Sch's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,018
- Students per teacher
- 14.2:1
- Resource Index
- 44/100
- Enrollment
- 2,849
- Students per teacher
- 16.7:1
- Resource Index
- 37/100
- Enrollment
- 2,766
- Students per teacher
- 14.5:1
- Resource Index
- 40/100
- Enrollment
- 1,011
- Students per teacher
- 14.2:1
- Resource Index
- 44/100
- Enrollment
- 948
- Students per teacher
- 14.8:1
- Resource Index
- 46/100
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 (~343 students)
Similar student-teacher ratio (~11.8:1)
Next steps
Verify locally before acting on Robert Clow Elem Sch's federal record.
- Compare Robert Clow Elem Sch against another school. Compare schools
- Indian Prairie Cusd 204'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 Robert Clow Elem Sch
How many students attend Robert Clow Elem Sch?
Robert Clow Elem Sch has 343 students enrolled. It is an elementary school in Naperville, IL.
What is the student-teacher ratio at Robert Clow Elem Sch?
The student-teacher ratio at Robert Clow Elem Sch is 11.8:1, which is 16% lower than the Illinois average of 14:1 and 25% 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 Robert Clow Elem Sch?
The largest demographic group at Robert Clow Elem Sch is White at 53.1% of enrollment, in Naperville, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.8/100.
What is the Resource Investment Index for Robert Clow Elem Sch?
Robert Clow Elem Sch has a Resource Investment Index of 64/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Robert Clow Elem Sch rank among elementary schools in Naperville?
By Resource Investment Index, Robert Clow Elem Sch ranks #2 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.
Is Robert Clow Elem Sch a good school?
Robert Clow Elem Sch earns 64/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also more racially and ethnically mixed than most Illinois 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 Indian Prairie Cusd 204?
Besides Robert Clow Elem Sch, Indian Prairie Cusd 204 also operates Neuqua Valley High School (3,018 students), Waubonsie Valley High School (2,849 students), and Metea Valley High School (2,766 students). See the Indian Prairie Cusd 204 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.