Summary:
Casey, Illinois, has two schools in these data: Monroe Elementary School (prekindergarten through grade 6, 530 students) and Casey-Westfield Junior/Senior High School (grades 7–12, 361 students). The strongest broad finding is that both schools’ 2025–2026 all-grades IAR results were above state results in ELA and mathematics: ELA was 61% and 57% at the schools versus 56% statewide, while math was 42% and 44% versus 40% statewide.
Monroe stands out in all-grades ELA, leading the high school by 5 percentage points; the high school leads in math by 2 points. Monroe’s grade-level results show a particularly strong fourth-grade math score: 64% proficient, 22 points above the state. But fifth-grade math was 24%, 12 points below the state, making it a notable low point. The high school’s results also vary by test: its grade 11 ACT ELA and science were 4 and 6 points above state results, while PreACT math was 17 points below in grade 9 and 11 points below in grade 10.
Results improved most at Casey-Westfield Junior/Senior High School: from 2024–2025 to 2025–2026, its all-grades ELA rose 11 points, moving from 8 points below the state to narrowly above it; math rose 13 points, moving from 8 points below to 4 points above. Monroe’s ELA rose 6 points, while its math edged down 1 point and remained above state results. SchoolDigger ranks Monroe at the 54th percentile with 3 stars and the high school at the 46th percentile with 2 stars. As context, their 2024–2025 student-teacher ratios were 17.6 and 13.3, and their free/reduced lunch eligible measures were 42% and 46%. The schools serve different grade spans, so their all-grades results are not a like-for-like comparison.
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