Summary:
ZIP code 60189 has seven schools serving elementary, middle and high school grades: five elementary schools, one middle school and one high school. Across the reported 2025–26 results, the elementary schools, middle school and high school all had strong performances compared with state results; chronic absenteeism at every school was also below the state rate of 24%. The clearest area-wide strength is elementary achievement: all five schools were above the state in all-grade math, with an average advantage of 33 percentage points.
Whittier Elementary School led the elementary schools in all-grade ELA and math, at 82% and 77%, and in grade 5 science, at 79%. Its science score was 22 points above Wiesbrook Elementary School, which had the lowest elementary science result, 57%; Wiesbrook also had the lowest all-grade ELA result, 76%. Madison Elementary School had the lowest elementary math result, 68%, though it remained well above the state’s 40%. Edison Middle School posted 91% in ELA, 66% in math and 77% in grade 8 science, beating state results by 34, 26 and 25 points. At Wheaton Warrenville South High School, grade 11 ACT proficiency was 72% in ELA, 58% in math and 65% in science; its grade 9 PreACT ELA result was 84%, 23 points above the state.
Results improved in several areas, although not at the same pace: Edison’s ELA, math and grade 8 science scores rose by 10, 9 and 17 points from the prior year, while the five-school elementary average in grade 5 science increased by 12 points. South’s grade 11 ACT results also rose, but its grade 9 PreACT math advantage over the state narrowed. SchoolDigger’s statewide percentiles show a mixed picture: Edison rose from the 93rd to 95th percentile and Briar Glen Elementary School from the 86th to 91st, while Whittier moved from the 95th to 94th. For context, 2024–25 free/reduced lunch eligible shares ranged from 10% at Whittier to 33% at Lincoln Elementary School; student–teacher ratios ranged from 11.5 at Madison to 19.3 at Briar Glen, without a simple pattern matching those measures to results.
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