Summary:
ZIP code 91040 has three schools: Apperson Street Elementary and Sunland Elementary, serving grades K–5, and Mt. Gleason Middle, serving grades 6–8; there are no high schools in this list. The biggest difference is between the two elementary schools: in 2025–2026, Apperson scored 12 points higher than Sunland in ELA and 18 points higher in math. The school a child attends is associated with a substantially different reported proficiency profile.
Apperson stands out in math and science, with 53% proficient in math and 51% in science—15 points above the state in each subject. Mt. Gleason leads in ELA at 50%, about 1 point above the state, and is also above the state in math and science. Sunland is lowest in ELA (34%) and math (35%), respectively 15 and 4 points below the state, but its 44% in science is 8 points above the state. The two elementary schools’ shared-grade results follow the same pattern: Apperson leads Sunland in every reported shared grade and subject.
Recent changes show a clear subject contrast: science rose at all three schools from 2024–2025 to 2025–2026—by 7 to 8 points—while ELA fell at each, by 2 points at Mt. Gleason, 5 at Sunland, and 11 at Apperson. Math was mixed: Mt. Gleason gained 6 points, Apperson fell 3, and Sunland was unchanged. SchoolDigger’s statewide percentile rankings over three years rose from 63 to 65 for Mt. Gleason, fell from 53 to 43 for Sunland, and ended at 68 for Apperson after reaching 75. As context, in 2024–2025, free/reduced lunch eligible figures were 66% at Apperson, 79% at Sunland, and 82% at Mt. Gleason; student-teacher ratios were 23.6, 18.8, and 18.2, respectively. These context measures do not explain the score differences.
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