allk12 · Rankings · Largest · Illinois · LaSalle County · High schools

The largest public high schools in LaSalle County, Illinois

This ranking covers the largest public high schools in LaSalle County, Illinois, drawn from 8 qualifying public high schools. Ottawa Township High School leads the list at 1,223, against a median of 436 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

LaSalle County, Illinois

Top Students

1,223

Median Students

436

LARGEST · LASALLE COUNTY, ILLINOIS

#	School	City	District	Level	Students
1	Ottawa Township High School	Ottawa, IL	Ottawa Twp HSD 140	High	1,223
2	La Salle-Peru Twp High School	La Salle, IL	La Salle-Peru Twp HSD 120	High	1,167
3	Streator Twp High School	Streator, IL	Streator Twp HSD 40	High	764
4	Mendota Twp High School	Mendota, IL	Mendota Twp HSD 280	High	493
5	Seneca High School	Seneca, IL	Seneca Twp HSD 160	High	378
6	Serena High School	Serena, IL	Serena CUSD 2	High	162
7	Earlville Jr/Sr High School	Earlville, IL	Earlville CUSD 9	High	97
8	Leland High School	Leland, IL	Leland CUSD 1	High	88

Page 1 of 1 · top 8 of 8 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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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.