McHenry County schools ranked by test score
Latest IAR + ISA year (2024-25). 56 schools in McHenry County, Illinois with reported Science scores. Illinois state average: 40.3%.
| Rank | School | Level | Science | vs state |
|---|---|---|---|---|
| 1 | Landmark Elem School McHenry · McHenry CCSD 15 | Elementary | 68.2% | +27.9pp |
| 2 | Marlowe Middle School Lake in the Hills · Huntley Comm Sch Dist 158 | Middle | 68.1% | +27.8pp |
| 3 | Heineman Middle School Algonquin · Huntley Comm Sch Dist 158 | Middle | 67.1% | +26.8pp |
| 4 | Briargate Elem School Cary · Cary CCSD 26 | Elementary | 65.0% | +24.7pp |
| 5 | Spring Grove Elementary School Spring Grove · Nippersink SD 2 | Elementary | 61.4% | +21.1pp |
| 6 | Leggee Elementary School Huntley · Huntley Comm Sch Dist 158 | Elementary | 61.0% | +20.7pp |
| 7 | Indian Prairie Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 60.7% | +20.4pp |
| 8 | North Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 60.0% | +19.7pp |
| 9 | Richard F Bernotas Middle Sch Crystal Lake · Crystal Lake CCSD 47 | Middle | 59.4% | +19.1pp |
| 10 | Riley Comm Cons School Marengo · Riley CCSD 18 | Elementary | 59.3% | +19.0pp |
| 11 | Alden Hebron Elem School Hebron · Alden Hebron SD 19 | Elementary | 59.1% | +18.8pp |
| 12 | Prairie Grove Junior High School Crystal Lake · Prairie Grove CSD 46 | Middle | 58.8% | +18.5pp |
| 13 | Conley Elementary School Algonquin · Huntley Comm Sch Dist 158 | Elementary | 57.7% | +17.4pp |
| 14 | Martin Elementary School Lake in the Hills · Huntley Comm Sch Dist 158 | Elementary | 57.1% | +16.8pp |
| 15 | Cary Jr High School Cary · Cary CCSD 26 | Middle | 56.8% | +16.5pp |
| 16 | Richmond Grade School Richmond · Nippersink SD 2 | Elementary | 56.3% | +16.0pp |
| 17 | Creekside Middle School Woodstock · Woodstock CUSD 200 | Middle | 53.9% | +13.6pp |
| 18 | South Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 53.2% | +12.9pp |
| 19 | Three Oaks School Cary · Cary CCSD 26 | Elementary | 53.0% | +12.7pp |
| 20 | Eastview Elem School Algonquin · CUSD 300 | Elementary | 52.9% | +12.6pp |
| 21 | Hannah Beardsley Middle School Crystal Lake · Crystal Lake CCSD 47 | Middle | 52.4% | +12.1pp |
| 22 | Northwood Middle School Woodstock · Woodstock CUSD 200 | Middle | 52.2% | +11.9pp |
| 23 | Kenneth E Neubert Elem School Algonquin · CUSD 300 | Elementary | 51.8% | +11.5pp |
| 24 | Woods Creek Elementary School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 50.6% | +10.3pp |
| 25 | Algonquin Middle School Algonquin · CUSD 300 | Middle | 50.5% | +10.2pp |
| 26 | Lundahl Middle School Crystal Lake · Crystal Lake CCSD 47 | Middle | 50.2% | +9.9pp |
| 27 | Fox River Grove Middle School Fox River Grove · Fox River Grove Cons SD 3 | Middle | 50.0% | +9.7pp |
| 28 | Lincoln Prairie Elem School Lake In The Hills · CUSD 300 | Elementary | 49.2% | +8.9pp |
| 29 | Parkland School McHenry · McHenry CCSD 15 | Middle | 49.1% | +8.8pp |
| 30 | Nippersink Middle School Richmond · Nippersink SD 2 | Middle | 47.2% | +6.9pp |
| 31 | Husmann Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 46.6% | +6.3pp |
| 32 | Cotton Creek School Island Lake · Wauconda CUSD 118 | Elementary | 45.4% | +5.1pp |
| 33 | McHenry Middle School McHenry · McHenry CCSD 15 | Middle | 45.3% | +5.0pp |
| 34 | Johnsburg Elementary School Johnsburg · Johnsburg CUSD 12 | Elementary | 43.5% | +3.2pp |
| 35 | West Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 43.0% | +2.7pp |
| 36 | Riverwood Elementary School McHenry · McHenry CCSD 15 | Elementary | 42.2% | +1.9pp |
| 37 | Alden-Hebron Middle School Hebron · Alden Hebron SD 19 | Middle | 41.7% | +1.4pp |
| 38 | Marengo Comm Middle School Marengo · Marengo-Union E Cons D 165 | Middle | 41.7% | +1.4pp |
| 39 | Deer Path Elem School Cary · Cary CCSD 26 | Elementary | 39.2% | -1.1pp |
| 40 | Greenwood Elem School Woodstock · Woodstock CUSD 200 | Elementary | 38.6% | -1.7pp |
| 41 | Olson Elementary School Woodstock · Woodstock CUSD 200 | Elementary | 37.7% | -2.6pp |
| 42 | Westwood Elem School Woodstock · Woodstock CUSD 200 | Elementary | 37.6% | -2.7pp |
| 43 | Chauncey H Duker School McHenry · McHenry CCSD 15 | Elementary | 37.2% | -3.1pp |
| 44 | Glacier Ridge Elementary School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 37.1% | -3.2pp |
| 45 | Mary Endres Elementary School Woodstock · Woodstock CUSD 200 | Elementary | 37.0% | -3.3pp |
| 46 | Coventry Elem School Crystal Lake · Crystal Lake CCSD 47 | Elementary | 36.8% | -3.5pp |
| 47 | Prairiewood Elem Sch Woodstock · Woodstock CUSD 200 | Elementary | 36.6% | -3.7pp |
| 48 | Valley View Elem School Mchenry · McHenry CCSD 15 | Elementary | 33.0% | -7.3pp |
| 49 | Dean Street Elem School Woodstock · Woodstock CUSD 200 | Elementary | 32.8% | -7.5pp |
| 50 | Harvard Jr High School Harvard · Harvard CUSD 50 | Middle | 29.6% | -10.7pp |
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 Science 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.