Summary:
ZIP code 85748 has one listed middle school, Gridley Middle School, serving grades 6–8 with 501 students and a 14.5:1 student-teacher ratio in Tucson Unified District. In 2025–26, Gridley’s all-grades proficiency was 34% in ELA and 18% in math, compared with state results of 41% and 33%; its eighth-grade science result was 20% in 2024–25, versus 30% statewide. The clearest concern is math: Gridley is 15 percentage points below the state, compared with a 7-point gap in ELA.
Gridley is the only listed school, so there are no local school-to-school leaders or trailers to compare. Against district benchmarks, however, it is stronger in ELA and eighth-grade science: its all-grades ELA result is 5 points above the district’s 29%, and eighth-grade science is 3 points above the district’s 17%. Math is 3 points below the district’s 21%. The grade-level pattern is consistent: Gridley is above the district and below the state in every reported ELA and math grade. Grade 7 is its ELA high point at 39% (9 points above the district), while grade 8 is its math high point at 20% (6 points above the district); even there, it remains 10 points below the state.
SchoolDigger’s ranking improved overall from 2023–24, but not steadily: Gridley ranked 400 of 550 schools (27th percentile, one star), then 369 of 552 (33rd percentile, two stars), and most recently 382 of 536 (29th percentile, one star) in 2025–26. From the earliest to latest entry, its rank number is 18 places lower and its percentile is 2 points higher, but the latest percentile is 4 points below the prior year. These rankings provide context, not a year-by-year account of test-score changes; the 14.5:1 ratio describes the school but cannot be compared with another local school, and no free/reduced-lunch rate is provided.
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