McHenry County schools ranked by test score
Latest IAR + ISA year (2024-25). 18 schools in McHenry County, Illinois with reported Mathematics scores. Illinois state average: 37.9%.
| Rank | School | Level | Mathematics | vs state |
|---|---|---|---|---|
| 1 | Marlowe Middle School Lake in the Hills · Huntley Comm Sch Dist 158 | Middle | 49.4% | +11.5pp |
| 2 | Heineman Middle School Algonquin · Huntley Comm Sch Dist 158 | Middle | 49.0% | +11.1pp |
| 3 | Creekside Middle School Woodstock · Woodstock CUSD 200 | Middle | 46.5% | +8.6pp |
| 4 | Alden-Hebron Middle School Hebron · Alden Hebron SD 19 | Middle | 43.8% | +5.9pp |
| 5 | Nippersink Middle School Richmond · Nippersink SD 2 | Middle | 42.0% | +4.1pp |
| 6 | Prairie Grove Junior High School Crystal Lake · Prairie Grove CSD 46 | Middle | 40.3% | +2.4pp |
| 7 | Northwood Middle School Woodstock · Woodstock CUSD 200 | Middle | 39.4% | +1.5pp |
| 8 | Algonquin Middle School Algonquin · CUSD 300 | Middle | 38.4% | +0.5pp |
| 9 | Marengo Comm Middle School Marengo · Marengo-Union E Cons D 165 | Middle | 37.8% | -0.1pp |
| 10 | Hannah Beardsley Middle School Crystal Lake · Crystal Lake CCSD 47 | Middle | 36.0% | -1.9pp |
| 11 | Cary Jr High School Cary · Cary CCSD 26 | Middle | 35.8% | -2.1pp |
| 12 | Fox River Grove Middle School Fox River Grove · Fox River Grove Cons SD 3 | Middle | 33.9% | -4.0pp |
| 13 | Parkland School McHenry · McHenry CCSD 15 | Middle | 33.3% | -4.6pp |
| 14 | Richard F Bernotas Middle Sch Crystal Lake · Crystal Lake CCSD 47 | Middle | 29.9% | -8.0pp |
| 15 | Lundahl Middle School Crystal Lake · Crystal Lake CCSD 47 | Middle | 29.4% | -8.5pp |
| 16 | McHenry Middle School McHenry · McHenry CCSD 15 | Middle | 26.3% | -11.6pp |
| 17 | Johnsburg Jr High School Johnsburg · Johnsburg CUSD 12 | Middle | 24.8% | -13.1pp |
| 18 | Harvard Jr High School Harvard · Harvard CUSD 50 | Middle | 9.2% | -28.7pp |
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 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.