Summary:
ZIP code 61102 has six schools: three serving K–5, two serving K–8, and Rockford Envrnmntl Science Academy, serving grades 6–8. In 2025–26, the schools’ unweighted average proficiency was 27% in English language arts (ELA) and 14% in mathematics, compared with state results of 56% and 40%. The most important finding is that all six schools were below the state in both subjects.
Barbour Two-Way Lang Immersion stands out at the top, leading in ELA at 48% and mathematics at 23%; those results were 26 and 10 percentage points above the averages at the other five schools. Barbour was still 8 points below the state in ELA and 17 points below in mathematics. Legacy Academy of Excellence Charter School was a close second in all-grades ELA at 47%, and exceeded the state in fourth-grade ELA (65% versus 56%) and sixth-grade ELA (60% versus 59%). At the lower end, Julia Lathrop Elementary School had the lowest ELA result, 10%, while Rockford had the lowest mathematics result, 5%; Rockford was also 29 points below the other five schools’ ELA average and 9 points below their mathematics average. In eighth-grade science, Barbour had the highest reported result at 48%, while Rockford had the lowest at 12%.
Average ELA improved from 23% in 2024–25 to 27% in 2025–26, a 4-point gain, while the state improved by 3 points. Average mathematics was essentially unchanged at 14%, even as the state rose by 1 point. SchoolDigger’s 2025–26 percentile ranks were 23 for Legacy, 16 for Barbour, 1 each for Washington and Ellis, and 0 for Rockford; Lathrop’s latest supplied rank is 5 for 2024–25. Other school characteristics do not point to one simple choice: student–teacher ratios range from 13.0 at Ellis Elementary School to 29.2 at Legacy, while chronic absenteeism ranges from 6% at Barbour to 59% at Legacy. All six schools report the same low-income measure, free/reduced lunch eligible, for school year 2024–25, ranging from 20% at Legacy to 93% at Ellis; these figures provide context, not an explanation for results.
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