Summary:
Zip code 85308 has one middle school, Desert Sky Middle School, serving grades 7–8 with 640 students in the Deer Valley Unified District. Its results are mixed: grade 7 is fairly close to state proficiency levels, while grade 8 is further behind; the clearest concern is grade 8, especially math, where proficiency is 10 percentage points below the state.
There is no separate top or bottom school to compare in this one-school list, so the most useful comparisons are with district and state results. Across both grades, Desert Sky’s ELA proficiency is 36%, 5 points below the state and 19 below the district; math is 22%, 11 points below the state and 27 below the district. The grade-level results show that the gap is not equally large in both grades: grade 7 is 3 points below the state in both ELA and math, while grade 8 is 8 points below in ELA and 10 below in math. Grade 8’s average across those two subjects is 26%, compared with 32% in grade 7. The grade 8 science result is a more favorable state comparison: 29% in 2024–2025, just 1 point below the state’s 30%, although it is 22 points below the district.
SchoolDigger’s ranking has moved down over the three listed years, but the available figures do not show whether proficiency itself rose or fell. Desert Sky went from the 49th percentile in 2023–2024 to the 43rd in 2024–2025 and the 37th in 2025–2026; its latest ranking is 336 of 536 schools, with 2 stars. SchoolDigger lists the district at 84 of 267, the 69th percentile, with 3 stars. Desert Sky’s student–teacher ratio is 22.5, and its free/reduced-lunch figure is not reported. The ranking trend and school characteristics offer context, but the grade 7 and grade 8 proficiency results provide the clearest contrast for families weighing the available information.
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