Elementary Schools in Glendale Elementary District

The 14 elementary schools in Glendale Elementary District serve students from preschool or kindergarten through grade 8 in most cases; Desert Garden serves preschool through grade 6. Twelve schools have reported all-grades results: their averages are 27% in English language arts (ELA) and 23% in math, compared with state results of 41% and 33%. Results vary widely across schools, but Discovery School is the only school above the state in both subjects.

Discovery School is the clearest standout, with 46% proficient in ELA and 42% in math—5 and 9 points above the state, respectively. Its results also exceed the group averages by 19 points in ELA and math. The next-highest ELA result is 34% at William C Jack School; the next-highest math results are 29% at Horizon School and Challenger Middle School. At the other end, Don Mensendick School has the lowest results: 16% in ELA and 11% in math. Glendale Landmark School is also near the bottom, at 17% and 14%.

SchoolDigger rankings improved for most of the eight schools with comparable rankings: their average percentile rose from 17 to 25 between 2023–24 and 2025–26. Sunset Vista gained 17 percentile points and William C Jack School gained 15, while Discovery School ranked highest locally at 444 of 900 schools, in the 51st percentile with 3 stars. These relative rankings do not show whether test scores rose. Grade-level results also vary: Horizon School had 56% proficient in eighth-grade math, while Challenger Middle School had 51% in fifth-grade math; both exceeded state results. Similar student–teacher ratios do not correspond to similar all-grades scores: Discovery School and Glenn F Burton School each have a ratio of 20.0, but their ELA results are 46% and 25%. Results are suppressed for Glendale Elementary Online (G.E.O.) Learning and not supplied for Desert Garden Elementary School.