Summary:
ZIP code 60540 has one middle school, Washington Junior High School, serving grades 5–8 in Naperville CUSD 203; it enrolls 551 students. Its 2025–26 all-grade proficiency rates were 81% in English language arts (ELA) and 70% in math, respectively 25 and 31 percentage points above state results.
As the only school listed, Washington is both the area’s top and bottom school; there is no other local school to compare it with. Its strongest reported grade-level results were grade 8 math, at 73%—38 points above the state and 7 above the district—and grade 8 science, at 88%, 36 points above the state. Every reported grade-level result was above the state, but grade 5 was a relative weakness against the district: ELA was 6 points lower and math 11 points lower. In 2025–26, all-grade ELA and math were each 1 point below district results.
Results improved from 2024–25 to 2025–26: all-grade ELA rose from 77% to 81%, and math from 62% to 70%. Washington’s advantage over the state grew by 1 point in ELA and 7 points in math. Science gains varied by grade: grade 5 rose 5 points, but its state lead narrowed by 2; grade 8 rose 17 points, widening its state lead by 11. SchoolDigger places Washington in the 94th percentile for 2025–26, up from the 92nd percentile in each of the prior two years; the district ranks 43rd of 738, also according to SchoolDigger. The school’s 2024–25 student-teacher ratio was 12.8, and 13% of students were free/reduced lunch eligible in 2024–25. These two years of test results do not establish a longer-term trend.
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