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

The largest public high schools in McHenry County, Illinois

14 public high schools in McHenry County, Illinois appear in this ranking of the largest public high schools, ranked by total student enrollment, excluding online and virtual schools. Huntley High School leads the list at 2,804, against a median of 1,061 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

McHenry County, Illinois

Top Students

2,804

Median Students

1,061

LARGEST · MCHENRY COUNTY, ILLINOIS

#	School	City	District	Level	Students
1	Huntley High School	Huntley, IL	Huntley Comm Sch Dist 158	High	2,804
2	McHenry Community High School	Mchenry, IL	McHenry CHSD 156	High	2,214
3	Harry D Jacobs High School	Algonquin, IL	CUSD 300	High	2,056
4	Crystal Lake Central High School	Crystal Lake, IL	CHSD 155	High	1,443
5	Cary-Grove Community High School	Cary, IL	CHSD 155	High	1,348
6	Crystal Lake South High School	Crystal Lake, IL	CHSD 155	High	1,279
7	Prairie Ridge High School	Crystal Lake, IL	CHSD 155	High	1,133
8	Woodstock High School	Woodstock, IL	Woodstock CUSD 200	High	988
9	Woodstock North High School	Woodstock, IL	Woodstock CUSD 200	High	915
10	Harvard High School	Harvard, IL	Harvard CUSD 50	High	815
11	Marengo High School	Marengo, IL	Marengo CHSD 154	High	685
12	Richmond-Burton High School	Richmond, IL	Richmond-Burton CHSD 157	High	521
13	Johnsburg High School	Johnsburg, IL	Johnsburg CUSD 12	High	502
14	Alden-Hebron High School	Hebron, IL	Alden Hebron SD 19	High	112

Page 1 of 1 · top 14 of 14 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.