allk12 · Rankings · Highest ratio · Illinois · McHenry County

The public schools with the highest student-to-teacher ratios in McHenry County, Illinois

78 public schools in McHenry County, Illinois appear in this ranking of the public schools with the highest student-to-teacher ratios, ranked by the most students per teacher, a proxy for larger classes. District 158 Early Childhood Ctr leads the list at 22.0:1, against a median of 13.2:1 across the ranked schools.

Use the search box to find a specific school within this ranking, sort by any column, or export the full list. Built from NCES and state data for 2024-25.

Schools ranked

McHenry County, Illinois

Top Students/teacher

22.0:1

Median Students/teacher

13.2:1

HIGHEST RATIO · MCHENRY COUNTY, ILLINOIS

#	School	City	District	Level	Students	Ratio
1	District 158 Early Childhood Ctr	Lk In The Hls, IL	Huntley Comm Sch Dist 158	Elementary	242	22.0:1
2	Verda Dierzen Early Learning Ctr	Woodstock, IL	Woodstock CUSD 200	Elementary	675	18.3:1
3	Mary Endres Elementary School	Woodstock, IL	Woodstock CUSD 200	Elementary	431	18.0:1
4	Cary-Grove Community High School	Cary, IL	CHSD 155	High	1,348	17.7:1
5	Crystal Lake Central High School	Crystal Lake, IL	CHSD 155	High	1,443	16.9:1
6	Greenwood Elem School	Woodstock, IL	Woodstock CUSD 200	Elementary	290	16.6:1
7	Crystal Lake South High School	Crystal Lake, IL	CHSD 155	High	1,279	16.5:1
8	Prairie Ridge High School	Crystal Lake, IL	CHSD 155	High	1,133	16.4:1
9	Oak Knoll Early Childhood Center	Cary, IL	Cary CCSD 26	Elementary	316	16.2:1
10	Marengo Comm Middle School	Marengo, IL	Marengo-Union E Cons D 165	Middle	342	16.1:1
11	Ulysses S Grant Intermediate Sch	Marengo, IL	Marengo-Union E Cons D 165	Elementary	249	15.9:1
12	Briargate Elem School	Cary, IL	Cary CCSD 26	Elementary	400	15.9:1
13	Huntley High School	Huntley, IL	Huntley Comm Sch Dist 158	High	2,804	15.7:1
14	Woodstock High School	Woodstock, IL	Woodstock CUSD 200	High	988	15.5:1
15	McHenry Community High School	Mchenry, IL	McHenry CHSD 156	High	2,214	15.4:1
16	Westwood Elem School	Woodstock, IL	Woodstock CUSD 200	Elementary	385	15.2:1
17	Woodstock North High School	Woodstock, IL	Woodstock CUSD 200	High	915	14.9:1
18	Prairiewood Elem Sch	Woodstock, IL	Woodstock CUSD 200	Elementary	374	14.8:1
19	Lake in the Hills Elem School	Lk In The Hls, IL	CUSD 300	Elementary	502	14.8:1
20	Johnsburg Jr High School	Johnsburg, IL	Johnsburg CUSD 12	Middle	373	14.8:1
21	Olson Elementary School	Woodstock, IL	Woodstock CUSD 200	Elementary	425	14.8:1
22	Husmann Elem School	Crystal Lake, IL	Crystal Lake CCSD 47	Elementary	518	14.6:1
23	Harry D Jacobs High School	Algonquin, IL	CUSD 300	High	2,056	14.6:1
24	West Elem School	Crystal Lake, IL	Crystal Lake CCSD 47	Elementary	520	14.5:1
25	Mackeben Elementary School	Algonquin, IL	Huntley Comm Sch Dist 158	Elementary	522	14.5:1
26	Marengo High School	Marengo, IL	Marengo CHSD 154	High	685	14.5:1
27	Johnsburg Elementary School	Johnsburg, IL	Johnsburg CUSD 12	Elementary	386	14.4:1
28	Locust Elem School	Marengo, IL	Marengo-Union E Cons D 165	Elementary	501	14.4:1
29	Deer Path Elem School	Cary, IL	Cary CCSD 26	Elementary	452	14.2:1
30	Lincoln Prairie Elem School	Lake In The Hills, IL	CUSD 300	Elementary	479	14.1:1
31	Hannah Beardsley Middle School	Crystal Lake, IL	Crystal Lake CCSD 47	Middle	829	14.1:1
32	Ringwood School Primary Ctr	Ringwood, IL	Johnsburg CUSD 12	Elementary	420	14.0:1
33	Conley Elementary School	Algonquin, IL	Huntley Comm Sch Dist 158	Elementary	598	13.9:1
34	Marlowe Middle School	Lake in the Hills, IL	Huntley Comm Sch Dist 158	Middle	1,215	13.8:1
35	Creekside Middle School	Woodstock, IL	Woodstock CUSD 200	Middle	736	13.7:1
36	Martin Elementary School	Lake in the Hills, IL	Huntley Comm Sch Dist 158	Elementary	776	13.4:1
37	Chesak Elementary School	Lake in the Hills, IL	Huntley Comm Sch Dist 158	Elementary	643	13.4:1
38	Algonquin Road Elem School	Fox River Grove, IL	Fox River Grove Cons SD 3	Elementary	239	13.3:1
39	Lundahl Middle School	Crystal Lake, IL	Crystal Lake CCSD 47	Middle	797	13.3:1
40	Johnsburg High School	Johnsburg, IL	Johnsburg CUSD 12	High	502	13.2:1
41	Riverwood Elementary School	McHenry, IL	McHenry CCSD 15	Elementary	619	13.2:1
42	Heineman Middle School	Algonquin, IL	Huntley Comm Sch Dist 158	Middle	724	13.2:1
43	Dean Street Elem School	Woodstock, IL	Woodstock CUSD 200	Elementary	302	13.1:1
44	Coventry Elem School	Crystal Lake, IL	Crystal Lake CCSD 47	Elementary	629	13.1:1
45	Leggee Elementary School	Huntley, IL	Huntley Comm Sch Dist 158	Elementary	877	13.1:1
46	Richmond Grade School	Richmond, IL	Nippersink SD 2	Elementary	407	13.0:1
47	Prairie Grove Elem School	Crystal Lake, IL	Prairie Grove CSD 46	Elementary	552	13.0:1
48	North Elem School	Crystal Lake, IL	Crystal Lake CCSD 47	Elementary	638	12.9:1
49	Canterbury Elem School	Crystal Lake, IL	Crystal Lake CCSD 47	Elementary	486	12.9:1
50	Northwood Middle School	Woodstock, IL	Woodstock CUSD 200	Middle	576	12.7:1

Page 1 of 2 · top 78 of 78 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.