McHenry County schools ranked by test score
Latest IAR + ISA year (2024-25). 62 schools in McHenry County, Illinois with reported Mathematics scores. Illinois state average: 37.9%.
| Rank | School | Level | Mathematics | vs state |
|---|---|---|---|---|
| 1 | Locust Elem School Marengo · Marengo-Union E Cons D 165 | Elementary | 67.4% | +29.5pp |
| 2 | Leggee Elementary School Huntley · Huntley Comm Sch Dist 158 | Elementary | 67.0% | +29.1pp |
| 3 | Eastview Elem School Algonquin · CUSD 300 | Elementary | 66.7% | +28.8pp |
| 4 | Edgebrook Elem School Mchenry · McHenry CCSD 15 | Elementary | 66.2% | +28.3pp |
| 5 | Kenneth E Neubert Elem School Algonquin · CUSD 300 | Elementary | 65.3% | +27.4pp |
| 6 | Lincoln Prairie Elem School Lake In The Hills · CUSD 300 | Elementary | 64.9% | +27.0pp |
| 7 | Conley Elementary School Algonquin · Huntley Comm Sch Dist 158 | Elementary | 63.0% | +25.1pp |
| 8 | Spring Grove Elementary School Spring Grove · Nippersink SD 2 | Elementary | 61.1% | +23.2pp |
| 9 | Landmark Elem School McHenry · McHenry CCSD 15 | Elementary | 60.2% | +22.3pp |
| 10 | Prairie Grove Elem School Crystal Lake · Prairie Grove CSD 46 | Elementary | 59.0% | +21.1pp |
| 11 | South Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 57.5% | +19.6pp |
| 12 | Briargate Elem School Cary · Cary CCSD 26 | Elementary | 57.3% | +19.4pp |
| 13 | Martin Elementary School Lake in the Hills · Huntley Comm Sch Dist 158 | Elementary | 56.9% | +19.0pp |
| 14 | Algonquin Road Elem School Fox River Grove · Fox River Grove Cons SD 3 | Elementary | 54.1% | +16.2pp |
| 15 | Riley Comm Cons School Marengo · Riley CCSD 18 | Elementary | 53.1% | +15.2pp |
| 16 | Alden Hebron Elem School Hebron · Alden Hebron SD 19 | Elementary | 53.0% | +15.1pp |
| 17 | Woods Creek Elementary School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 52.6% | +14.7pp |
| 18 | Cotton Creek School Island Lake · Wauconda CUSD 118 | Elementary | 50.7% | +12.8pp |
| 19 | Glacier Ridge Elementary School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 49.7% | +11.8pp |
| 20 | Marlowe Middle School Lake in the Hills · Huntley Comm Sch Dist 158 | Middle | 49.4% | +11.5pp |
| 21 | Indian Prairie Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 49.3% | +11.4pp |
| 22 | Westwood Elem School Woodstock · Woodstock CUSD 200 | Elementary | 49.1% | +11.2pp |
| 23 | Heineman Middle School Algonquin · Huntley Comm Sch Dist 158 | Middle | 49.0% | +11.1pp |
| 24 | Valley View Elem School Mchenry · McHenry CCSD 15 | Elementary | 48.7% | +10.8pp |
| 25 | Deer Path Elem School Cary · Cary CCSD 26 | Elementary | 48.5% | +10.6pp |
| 26 | North Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 48.3% | +10.4pp |
| 27 | Three Oaks School Cary · Cary CCSD 26 | Elementary | 47.5% | +9.6pp |
| 28 | Creekside Middle School Woodstock · Woodstock CUSD 200 | Middle | 46.5% | +8.6pp |
| 29 | West Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 46.5% | +8.6pp |
| 30 | Olson Elementary School Woodstock · Woodstock CUSD 200 | Elementary | 45.2% | +7.3pp |
| 31 | Riverwood Elementary School McHenry · McHenry CCSD 15 | Elementary | 44.7% | +6.8pp |
| 32 | Alden-Hebron Middle School Hebron · Alden Hebron SD 19 | Middle | 43.8% | +5.9pp |
| 33 | Greenwood Elem School Woodstock · Woodstock CUSD 200 | Elementary | 43.7% | +5.8pp |
| 34 | Hilltop Elem School McHenry · McHenry CCSD 15 | Elementary | 42.2% | +4.3pp |
| 35 | Nippersink Middle School Richmond · Nippersink SD 2 | Middle | 42.0% | +4.1pp |
| 36 | Husmann Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 41.6% | +3.7pp |
| 37 | Johnsburg Elementary School Johnsburg · Johnsburg CUSD 12 | Elementary | 41.1% | +3.2pp |
| 38 | Prairie Grove Junior High School Crystal Lake · Prairie Grove CSD 46 | Middle | 40.3% | +2.4pp |
| 39 | Richmond Grade School Richmond · Nippersink SD 2 | Elementary | 39.8% | +1.9pp |
| 40 | Prairiewood Elem Sch Woodstock · Woodstock CUSD 200 | Elementary | 39.6% | +1.7pp |
| 41 | Northwood Middle School Woodstock · Woodstock CUSD 200 | Middle | 39.4% | +1.5pp |
| 42 | Algonquin Middle School Algonquin · CUSD 300 | Middle | 38.4% | +0.5pp |
| 43 | Marengo Comm Middle School Marengo · Marengo-Union E Cons D 165 | Middle | 37.8% | -0.1pp |
| 44 | Lake in the Hills Elem School Lk In The Hls · CUSD 300 | Elementary | 37.6% | -0.3pp |
| 45 | Ulysses S Grant Intermediate Sch Marengo · Marengo-Union E Cons D 165 | Elementary | 37.0% | -0.9pp |
| 46 | Hannah Beardsley Middle School Crystal Lake · Crystal Lake CCSD 47 | Middle | 36.0% | -1.9pp |
| 47 | Cary Jr High School Cary · Cary CCSD 26 | Middle | 35.8% | -2.1pp |
| 48 | Coventry Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 33.9% | -4.0pp |
| 49 | Fox River Grove Middle School Fox River Grove · Fox River Grove Cons SD 3 | Middle | 33.9% | -4.0pp |
| 50 | Mary Endres Elementary School Woodstock · Woodstock CUSD 200 | Elementary | 33.3% | -4.6pp |
About this ranking
Schools are ranked by the percentage of students who scored at or above the IAR + ISA % Proficient (Levels 4-5) threshold on the latest available IAR + ISA Mathematics test (school year 2024-25). Only public schools in McHenry County, Illinois with a reasonable cohort size are shown. A higher percentage is better.
The comparison column shows the gap to the Illinois statewide enrollment-weighted average. To compare against neighboring counties, use the full Illinois ranking.