Summary:
Delavan, Illinois, has three public schools serving PK–12: Delavan Elementary School (PK–6), Delavan Junior High School (7–8), and Delavan High School (9–12). Together they enroll 375 students, including 55 at Junior High and 191 at Elementary. The clearest high-school finding is a sharp split by subject: in 2025–2026, High School’s 11th-grade ACT proficiency was 71% in ELA and 57% in science—22 and 9 points above state results—but 31% in math, 8 points below the state.
Among the two schools reporting all-grades IAR results, Elementary leads Junior High by 2 points in ELA (50% versus 48%) and 9 points in math (35% versus 27%). Both schools are below state levels overall: Elementary is 7 points below in ELA and 4 in math, while Junior High is 9 and 13 points below. Grade-level results add important exceptions: Junior High’s eighth-grade ELA was 67%, 4 points above the state; Elementary’s fourth-grade ELA was 58%, 2 points above, and its sixth-grade math was 40%, 4 points above. So the all-grades comparison does not capture every grade’s results.
Elementary and Junior High’s all-grades IAR results improved from the prior year: Elementary gained 9 points in ELA and 10 in math, while Junior High gained 15 in ELA and 2 in math. High School’s ACT results moved down instead—6 points in ELA, 23 in math, and 20 in science—and its average advantage over the state narrowed from 23 points to 7. SchoolDigger’s rankings rose from the 33rd to 41st percentile for Elementary and from the 30th to 39th for Junior High; High School went from the 47th percentile in 2023–2024 to the 84th in 2024–2025, then the 77th in 2025–2026. In 2024–2025, free/reduced lunch eligible rates were 38% at Elementary, 36% at Junior High, and 30% at High School; student–teacher ratios were 8.9, 12.5, and 11.9, respectively. These figures provide context, not an explanation of results, since the schools serve different grade spans and there are only three schools.
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