Summary:
ZIP code 91784 has one middle school, Pioneer Junior High, serving grades 7–8 with 771 students in the Upland Unified district. With no other middle school in the area list, families can compare Pioneer with district and statewide results, but not with another local school. The most important finding is that Pioneer scored above both its district and the state in all three reported subjects in 2025–2026.
Pioneer’s strongest all-grades result was ELA, at 64%, compared with 54% in math and 46% in science. Its biggest advantage over the state was in math: 54% versus 38%, a 16-point lead. In ELA, it scored 64% versus 49% statewide, a 15-point lead; in science, it scored 46% versus 36%, a 10-point lead. Grade-level results also favored Pioneer over the state: its seventh-grade ELA result was 70% versus 51%, while eighth-grade ELA was 58% versus 49%. The difference between Pioneer’s seventh- and eighth-grade ELA results was 13 points, compared with 1 point statewide. Since Pioneer is the only school listed, there is no local top-versus-bottom comparison.
Results were mixed from 2024–2025 to 2025–2026: Pioneer’s ELA rose by less than a point and math rose by 2 points, while science fell by 4 points; it nevertheless remained above the state in every subject. Its science advantage over the state narrowed from 18 points to 10 points. SchoolDigger’s statewide ranking moved from 421 of 2,783 schools in 2023–2024 to 435 of 2,761 in 2024–2025 and 466 of 2,703 in 2025–2026; its reported percentile changed from 85 to 84 to 83, while its rating stayed at four stars. In 2024–2025, Pioneer’s student-teacher ratio was 21.8:1, and 51% of students were free/reduced lunch eligible. Chronic absenteeism in 2025–2026 was 10%, below the district’s 21% and the state’s 18%.
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