Summary:
Three schools in New Berlin, Illinois, serve 863 students across PK–12: an elementary school (PK–5), junior high (grades 6–8), and high school (grades 9–12). In 2025–26, the elementary school led the junior high in all-grades IAR results by 4 percentage points in ELA (74% vs. 69%) and 5 points in math (50% vs. 45%); both schools were above state averages. Together, their unweighted averages were 72% in ELA, 15 points above the state, and 47% in math, 8 points above. The most important takeaway is that results are generally favorable compared with the state, but uneven: fourth-grade math at the elementary school and grade 11 ACT math at the high school were below state results.
The elementary school stands out for its fifth-grade results: ELA proficiency was 88%, 33 points above the state, and science was 75%, 28 points above. The junior high was above the state in every reported IAR grade, though its eighth-grade science result was nearly even with the state: 53% versus 52%. The high school had a strong grade 11 ACT ELA result of 67%, 17 points above the state, and science was 55%, 7 points above; ACT math was 39%, about 1 point below the state. The clearest specific-grade weakness was elementary fourth-grade math at 36%, 6 points below the state.
Recent trends show improvement in ELA relative to the state, but a smaller math advantage: the two IAR schools’ average ELA margin widened by 2 points from 2024–25 to 2025–26, while their math margin narrowed by 1 point. High school grade 11 ACT scores rose 19 points in ELA, 6 in math, and 13 in science; however, grade 10 PreACT science fell 11 points while grade 9 PreACT science rose 29. SchoolDigger places the high school at the 79th percentile, the elementary school at the 71st, and the junior high at the 65th, with each ranked among a different group of schools. For context, 2024–25 student–teacher ratios ranged from 12.2 to 13.2, and free/reduced lunch eligible shares were 26% to 30%. Year-to-year results reflect different tested groups of students.
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