Winnebago County schools ranked by test score
Latest IAR + ISA year (2024-25). 39 schools in Winnebago County, Illinois with reported Science scores. Illinois state average: 40.3%.
| Rank | School | Level | Science | vs state |
|---|---|---|---|---|
| 1 | Whitman Post Elem School Rockton · Rockton SD 140 | Elementary | 64.5% | +24.2pp |
| 2 | Shirland C C School Shirland · Shirland CCSD 134 | Elementary | 63.6% | +23.3pp |
| 3 | Kinnikinnick School Roscoe · Kinnikinnick CCSD 131 | Elementary | 55.9% | +15.6pp |
| 4 | Haskell Elementary School Rockford · Rockford SD 205 | Elementary | 52.3% | +12.0pp |
| 5 | Montessori Elementary School Rockford · Rockford SD 205 | Elementary | 52.0% | +11.7pp |
| 6 | Olson Park Elem School Machesney Park · Harlem UD 122 | Elementary | 48.7% | +8.4pp |
| 7 | Brookview Elem School Rockford · Rockford SD 205 | Elementary | 45.3% | +5.0pp |
| 8 | Durand Elem School Durand · Durand CUSD 322 | Elementary | 44.7% | +4.4pp |
| 9 | Jean McNair Elementary School Winnebago · Winnebago CUSD 323 | Elementary | 44.0% | +3.7pp |
| 10 | Ralston Elem School Machesney Park · Harlem UD 122 | Elementary | 38.2% | -2.1pp |
| 11 | Loves Park Elem School Loves Park · Harlem UD 122 | Elementary | 37.8% | -2.5pp |
| 12 | Swan Hillman Elem School Rockford · Rockford SD 205 | Elementary | 33.7% | -6.6pp |
| 13 | Cherry Valley Elementary School Rockford · Rockford SD 205 | Elementary | 33.6% | -6.7pp |
| 14 | Windsor Elem School Loves Park · Harlem UD 122 | Elementary | 31.1% | -9.2pp |
| 15 | Legacy Acad of Excellence Charter Rockford · Rockford SD 205 | Elementary | 31.0% | -9.3pp |
| 16 | Machesney Elem School Machesney Park · Harlem UD 122 | Elementary | 28.4% | -11.9pp |
| 17 | Barbour Two-Way Lang Immersion Rockford · Rockford SD 205 | Elementary | 28.2% | -12.1pp |
| 18 | Arthur Froberg Elem School Rockford · Rockford SD 205 | Elementary | 27.6% | -12.7pp |
| 19 | Spring Creek Elem School Rockford · Rockford SD 205 | Elementary | 25.9% | -14.4pp |
| 20 | Rolling Green Rockford · Rockford SD 205 | Elementary | 25.0% | -15.3pp |
| 21 | Maud E Johnson Elem School Rockford · Rockford SD 205 | Elementary | 23.7% | -16.6pp |
| 22 | R K Welsh Elem School Rockford · Rockford SD 205 | Elementary | 20.9% | -19.4pp |
| 23 | Maple Elem School Loves Park · Harlem UD 122 | Elementary | 17.1% | -23.2pp |
| 24 | Whitehead Elem School Rockford · Rockford SD 205 | Elementary | 17.1% | -23.2pp |
| 25 | Rock Cut Elem School Loves Park · Harlem UD 122 | Elementary | 16.3% | -24.0pp |
| 26 | Riverdahl Elem School Rockford · Rockford SD 205 | Elementary | 15.7% | -24.6pp |
| 27 | West View Elem School Rockford · Rockford SD 205 | Elementary | 15.5% | -24.8pp |
| 28 | McIntosh Elementary Rockford · Rockford SD 205 | Elementary | 15.0% | -25.3pp |
| 29 | Galapagos Rockford Charter Sch Rockford · Rockford SD 205 | Elementary | 14.5% | -25.8pp |
| 30 | Clifford P Carlson Elem School Rockford · Rockford SD 205 | Elementary | 13.6% | -26.7pp |
| 31 | Gregory Elem School Rockford · Rockford SD 205 | Elementary | 12.9% | -27.4pp |
| 32 | Washington Elementary School Rockford · Rockford SD 205 | Elementary | 12.7% | -27.6pp |
| 33 | Julia Lathrop Elem School Rockford · Rockford SD 205 | Elementary | 8.9% | -31.4pp |
| 34 | C Henry Bloom Elem School Rockford · Rockford SD 205 | Elementary | 8.3% | -32.0pp |
| 35 | Conklin Elem School Rockford · Rockford SD 205 | Elementary | 7.7% | -32.6pp |
| 36 | Constance Lane Elementary School Rockford · Rockford SD 205 | Elementary | 6.3% | -34.0pp |
| 37 | Ellis Elementary School Rockford · Rockford SD 205 | Elementary | 5.6% | -34.7pp |
| 38 | Lewis Lemon Elementary Rockford · Rockford SD 205 | Elementary | 4.2% | -36.1pp |
| 39 | Jackson Charter School Rockford · Rockford SD 205 | Elementary | 2.8% | -37.5pp |
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 Winnebago 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.