Enrollment
473
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Warrenville, IL
Clifford Johnson School
Federal NCES profile for Clifford Johnson School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 58/100.
2024-25 NCES dataElementary school (grades K-5)NCES 174218005526
👥 S:T ratio 54
🌟 Gifted program 70
📋 Attendance 51
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Clifford Johnson School earns 58/100 on the Resource Investment Index, with class sizes smaller than 77% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #2 of 3
- public schools in Warrenville · Resource Index
- 58
- Resource Index · Higher
- 11.5:1
- small classes for Illinois
- 473
- students enrolled
Clifford Johnson School has class sizes smaller than 77% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Clifford Johnson School ranks #2 of 3 public schools in Warrenville, IL.
School address
NCES ID 174218005526 Verify on NCES CCD record →
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
11.5:1
vs 14:1 Illinois avg
-18% vs state
Student-teacher ratio in context
How Clifford Johnson School compares with Illinois and U.S. medians
What stands out at Clifford Johnson School
Scale and staffing sit near the state mainstream
Clifford Johnson School is neither an extreme outlier in enrollment nor in student-teacher ratio among Illinois schools. Its profile therefore turns on the other dimensions rather than on scale alone: economic need, counselor coverage, program access, attendance, and district finance. This middle placement is useful because it prevents the campus from being mislabeled as unusually large, small, crowded, or teacher-dense when the federal comparison does not support that claim.
No single support indicator dominates
Clifford Johnson 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.
Clifford Johnson School is a mid-sized elementary school in Warrenville, Illinois, enrolling 473 students.
Class sizes run a bit leaner than typical: 11.5:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 473 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 92% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by Hispanic or Latino (55%) and White (30%), more mixed than most schools in the state (diversity index 60/100).
Attendance runs somewhat below the norm, with 19.5% of students chronically absent per the 2021-22 civil-rights collection.
Among Warrenville's elementary schools, it stands alongside Bower Elem School (406 students): Clifford Johnson School is larger than that campus by headcount and runs heavier classes (11.5:1 vs 9.7:1).
Cusd 200 also operates Wheaton Warrenville South H S (1,864 students) and Wheaton North High School (1,863 students) alongside Clifford Johnson 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 Clifford Johnson School compares
Clifford Johnson 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 | 11.5:1 | ▼ 18% | 14:1 | 15.7:1 |
| Enrollment | 473 | top 34% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.5:1
Leaner classes than 79% of US schools, among the more generously staffed nationally.
473
Bigger than 58% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
11.5:1
students per teacher
- 18% below state mean
Top 23% in Illinois - lower ratio than 77% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
19.5%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$19,208
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
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
Hispanic or Latino 54.8%
White 30.0%
Asian 5.5%
Two or More 5.5%
African American 4.0%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 54.8% of enrollment.
Student-body diversity index 60.2/100
Simpson diversity index - at 60.2, Clifford Johnson School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Cusd 200, which includes Clifford Johnson School.
$19,208
Per student
+6%
vs Illinois
Avg $18,196
+9%
vs U.S.
Avg $17,658
Revenue mix
Local 67.0%
State 26.9%
Federal 6.1%
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 Clifford Johnson School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Wheaton Warrenville South H S | Larger | No free-lunch data | Higher S:T ratio |
| Wheaton North High School | Larger | No free-lunch data | Higher S:T ratio |
| Monroe Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Hubble Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Edison Middle School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Clifford Johnson School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,864
- Students per teacher
- 14.6:1
- Resource Index
- 39/100
- Enrollment
- 1,863
- Students per teacher
- 14.1:1
- Resource Index
- 39/100
- Enrollment
- 716
- Students per teacher
- 11.9:1
- Resource Index
- 56/100
- Enrollment
- 679
- Students per teacher
- 12.6:1
- Resource Index
- 55/100
- Enrollment
- 635
- Students per teacher
- 13.2:1
- Resource Index
- 60/100
Similar elementary schools in Warrenville
1 comparable elementary schools (grades K-5) serving the same city.
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 (~473 students)
Next steps
Verify locally before acting on Clifford Johnson School's federal record.
- Compare Clifford Johnson School against another school. Compare schools
- Cusd 200'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 Clifford Johnson School
How many students attend Clifford Johnson School?
Clifford Johnson School has 473 students enrolled. It is an elementary school in Warrenville, IL.
What is the student-teacher ratio at Clifford Johnson School?
The student-teacher ratio at Clifford Johnson School is 11.5:1, which is 18% lower than the Illinois average of 14:1 and 27% 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 Clifford Johnson School?
The largest demographic group at Clifford Johnson School is Hispanic or Latino at 54.8% of enrollment, in Warrenville, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.2/100.
What is the Resource Investment Index for Clifford Johnson School?
Clifford Johnson School has a Resource Investment Index of 58/100 (higher 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 Clifford Johnson School rank among public schools in Warrenville?
By Resource Investment Index, Clifford Johnson School ranks #2 of 3 public schools in Warrenville, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Cusd 200?
Besides Clifford Johnson School, Cusd 200 also operates Wheaton Warrenville South H S (1,864 students), Wheaton North High School (1,863 students), and Monroe Middle School (716 students). See the Cusd 200 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.