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EDITION 2026.08 /8,821 RECORDS / PUBLIC DOMAIN

PublicDataHubOfficial public data, made findable
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Public school / Primary

Dennis Lab School

Decatur, Illinois

NCES ID
171185001399
District
Decatur SD 61
School type
Regular
Title I
Not designated

Dennis Lab School is a public primary school in Decatur, Illinois, run by Decatur SD 61. It enrols 551 students — the 31475th 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

551students

31475th nationally, tied with 112

Teachers

34.0FTE

34064th nationally, tied with 1,817

Students per teacher

16.2students

58373rd nationally, tied with 780

Free or reduced-price lunch

79.1%percent

22839th nationally, tied with 81

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 Decatur SD 61

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. 1Macarthur High School1,105 students
  2. 2Eisenhower High School934 students
  3. 3Montessori Academy for Peace697 students
  4. 4Johns Hill Magnet School643 students
  5. 5Hope Academy563 students
  6. 6Dennis Lab School551 students
  7. 7Parsons Elementary School462 students
  8. 8Stephen Decatur Middle School459 students
Distance from the state median

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

  • Enrollment+36.4%
  • Teachers+30.8%
  • Students per teacher+18.2%
  • Free or reduced-price lunch+48.1%
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Where this sits

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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.