allk12 · Rankings · Largest charters · Illinois · K-12 schools

The largest public charter schools in Illinois

This ranking covers the largest public charter schools in Illinois, drawn from 2 qualifying public K-12 schools. CICS - Longwood Campus leads the list at 1,137, against a median of 961 across the ranked schools.

The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.

Schools ranked

Illinois

Top Students

1,137

Median Students

961

LARGEST CHARTERS · ILLINOIS

#	School	City	District	Level	Students
1	CICS - Longwood Campus	Chicago, IL	Chicago Public Schools Dist 299	Combined	1,137
2	Horizon Science Acad-Belmont	Chicago, IL	Horizon Science Acad-Belmont	Combined	785

Page 1 of 1 · top 2 of 2 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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Largest charters rankings at a wider scope

Nationwide

Other rankings for Illinois

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.