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Public Schools in Illinois

3,845 schools · 865 districts · 1,852,242 students

48%
Average
Avg Proficiency
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Largest Schools in Illinois

School data sourced from NCES (National Center for Education Statistics) via the Common Core of Data.

Lane Technical High School

Chicago

4,496 students

Adlai E Stevenson High School

Lincolnshire

4,489 students

Taft High School

Chicago

4,464 students

Waukegan High School

Waukegan

4,355 students

East High School

Aurora

4,197 students

Lockport Township High Sch East

Lockport

3,872 students

Lyons Twp High Sch

La Grange

3,842 students

West Aurora High School

Aurora

3,818 students

Warren Township High School

Gurnee

3,758 students

Evanston Twp High School

Evanston

3,691 students

Frequently Asked Questions

Illinois has 3,845 public schools across 865 districts, serving 1,852,242 students.

The largest school in Illinois is Lane Technical High School with 4,496 students. Illinois has 3,845 public schools overall.

The average proficiency rate is 48%. Proficiency rates measure the percentage of students meeting state standards on standardized assessments, as reported by EDFacts.

All school data comes from the National Center for Education Statistics (NCES) Common Core of Data for enrollment and school characteristics, and EDFacts for proficiency rates and graduation rates.

Last updated:

School data is sourced from NCES enrollment records and EDFacts proficiency and graduation rate assessments. No synthetic scores are used.

For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.

Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.

For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.