Summary:
The Glendale Elementary District includes 14 elementary schools serving varying grade spans, with 2025–2026 all-grades proficiency results reported for 12. Their average proficiency was 27% in ELA and 23% in math, compared with state results of 41% and 33%. The most important finding is that the area’s broad results remain well below state levels, despite substantial differences among schools.
Discovery School is the clearest standout: it leads in ELA at 46% and math at 42%, about 21 percentage points above the other reported schools’ average in each subject. Those results are also 5 points above the state in ELA and 9 points above it in math; SchoolDigger ranks Discovery in the 51st percentile and gives it 3 stars. At the other end, Don Mensendick School has the lowest results, at 16% in ELA and 11% in math—25 and 22 points below state results. Glendale Landmark School is also near the bottom, at 17% in ELA and 14% in math.
SchoolDigger’s rankings have improved modestly overall, though most schools remain low in statewide standing: among 10 schools with consecutive-year ranks, the average rose from the 21st to the 24th percentile, and eight improved while two fell. For example, Sunset Vista rose from the 3rd to the 20th percentile, while Harold W Smith School fell from the 14th to the 11th. Grade-specific results can tell a different story: Horizon School reached 56% in grade 8 math, 26 points above the state, and William C Jack School had 53% in grade 8 ELA, 14 points above the state. Staffing ratios alone do not separate the top and bottom performers: Discovery’s ratio is 20.0 and Don Mensendick’s is 20.2, within the area range of 18.2 to 24.7. Results for Glendale Elementary Online (G.E.O.) Learning are suppressed, and Desert Garden Elementary School has no test-score results listed.
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