Summary:
Middle-school families in Tri Valley CUSD 3 have one listed option: Tri-Valley Middle School, serving grades 4–8 with 450 students. Its 2025–26 results were well above Illinois overall: ELA was 78% compared with 56% statewide, and math was 55% compared with 40%. The clearest exception is grade 8 ELA, where the school was below the state.
With only one school in the list, there is no school-to-school leader or laggard; the strongest results are within the school’s grade-level comparisons. Grade 4 was a standout: ELA reached 87%, 31 percentage points above Illinois, and math was 72%, 30 points above. Grade 7 math was also strong, at 67% versus 40% statewide. Grade 8 ELA was the low point: 60%, 3 points below the state’s 63%; grade 8 math remained 3 points above the state, at 38% versus 35%. Across all grades, ELA was 1 point below the district, and math was 3 points below. Grade 5 and grade 8 science results matched the district’s and exceeded Illinois by 22 and 18 points, respectively.
The school remains ahead of Illinois, but that advantage narrowed between 2024–25 and 2025–26: the ELA gap shrank by 2 points, math by 8, grade 5 science by 7, and grade 8 science by 8. SchoolDigger gives the school 4 stars and ranks it 295th of 1,126 schools, in the 74th percentile; its percentile was 90th in 2023–24 and 88th in 2024–25. The 2024–25 student–teacher ratio was 14.7, and 9% of students were free/reduced lunch eligible in 2024–25. These are contextual details, not explanations for the results.
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