Union Elementary

Union Elementary includes eight schools—six elementary schools serving kindergarten through grade 5 and two middle schools serving grades 6–8—with enrollments from 500 to 1,068. Every school’s reported grade-level results are above the matching California results, but performance varies considerably among schools: in fifth-grade ELA, Noddin Elementary has 85% proficiency and Lietz Elementary has 61%, while the state result is 49%. The key takeaway is that being above the state does not mean schools—or grades within them—have similar results.

Among elementary schools, Guadalupe Elementary leads in all-grade ELA at 83%, Carlton Elementary leads in math at 83%, and Oster Elementary leads in science at 72%. Carlton and Oster are nearly tied in math: 83.0% and 82.9%, respectively. At the other end, Lietz has the lowest elementary summaries in ELA (65%), math (63%) and science (56%); its math result is 17 percentage points below the average of the other five elementary schools. Among the middle schools, Union Middle leads Dartmouth Middle in ELA, math and science, by 13, 14 and 22 percentage points, respectively.

Results have generally improved, though not everywhere: elementary-school averages rose by 2 percentage points in ELA, 2 in math and 5 in science from 2024–25 to 2025–26. Standout changes include Noddin’s 20-point rise in science and Guadalupe’s 10-point rise in ELA; Lietz’s science result fell by 5 points, and Alta Vista Elementary declined in all three subjects. SchoolDigger ranks Union Middle at the 98th statewide percentile and Guadalupe at the 97th for 2025–26. As context, all schools report the same low-income measure—free/reduced lunch eligible—for 2024–25; among elementary schools, the reported share ranges from 5% at Carlton to 23% at Lietz. These figures describe school context, not the cause of results.