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EDITION 2026.08 /8,821 RECORDS / PUBLIC DOMAIN

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Public school / Primary

Clifford Johnson School

Warrenville, Illinois

NCES ID
174218005526
District
Cusd 200
School type
Regular
Title I
Not designated

Clifford Johnson School is a public primary school in Warrenville, Illinois, run by Cusd 200. It enrols 462 students — the 42211th largest of 4,435 public schools in Illinois.

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Reported figures, 2022–2023

The Common Core of Data is a directory collection: it records size and staffing, not achievement. Nothing here says whether a school is good.

Enrollment

462students

42211th nationally, tied with 148

Teachers

41.0FTE

23419th nationally, tied with 1,277

Students per teacher

11.3students

15700th nationally, tied with 633

Free or reduced-price lunch

61.9%percent

38727th nationally, tied with 91

How these figures are defined

Enrollment

Students reported in the autumn headcount. Size is not quality — it is here because it is the figure every other one has to be read against, and because a school of 90 and a school of 4,000 are not comparable on anything else.

Teachers

Classroom teachers in full-time equivalents, so a half-time teacher counts as 0.5. Non-teaching staff are excluded.

Students per teacher

Enrollment divided by teacher FTE. It is not class size: it counts every teacher against every student, including specialists who never take a full class. A school can have 15 students per teacher and 30 in the room.

Free or reduced-price lunch

Share of students eligible for free or reduced-price meals — the most widely used proxy for concentrated poverty in a school. Districts under community eligibility report all students as eligible, which inflates the figure and makes cross-district comparison unreliable.

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Within Cusd 200

Schools in the same district, which is the comparison the data actually supports — a peer group defined by who runs them rather than by whichever names sort nearby.

Enrollment — same district
  1. 1Wheaton North High School1,871 students
  2. 2Wheaton Warrenville South H S1,845 students
  3. 3Hubble Middle School714 students
  4. 4Monroe Middle School682 students
  5. 5Edison Middle School674 students
  6. 6Franklin Middle School575 students
  7. 7Pleasant Hill Elem School575 students
  8. 8Wiesbrook Elem School499 students
Distance from the state median

Baseline: Illinois median across 4,435 public schools. Bars right of the rule are above it.

  • Enrollment+14.4%
  • Teachers+57.7%
  • Students per teacher−17.5%
  • Free or reduced-price lunch+15.9%
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Sources & licence

Collected by the National Center for Education Statistics. Nothing here is edited, interpolated or estimated.

Provenance

National Center for Education Statistics
Common Core of Data — school and district directory
Current · as of August 17, 2026U.S. Public Domain (NCES)

Collected and published by NCES; retrieved through the Urban Institute Education Data Portal, which republishes the NCES files unchanged.

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Data as of September 1, 2022.