Summary:
Middle schools in ZIP code 92707 include two Santa Ana Unified schools, Douglas MacArthur Fundamental Intermediate and Julia C. Lathrop Intermediate; both serve grades 6–8. Their 2025–2026 results show a substantial difference between schools with the same grade span: MacArthur had higher proficiency in ELA, math, and science. The most important finding is that the school a student attends corresponds to a very different reported proficiency profile.
MacArthur stands out at the top, while Lathrop is lower in all three subjects. MacArthur’s proficiency was 48% in ELA, 31% in math, and 29% in science, compared with Lathrop’s 20%, 13%, and 10%—gaps of 28, 18, and 19 percentage points. MacArthur was also closer to state results: its rates were 1 point below the state in ELA, 8 in math, and 7 in science; Lathrop was behind by 29, 26, and 26 points. MacArthur’s seventh-grade ELA was a bright spot, at 52%, about 1 point above the state. SchoolDigger ranked MacArthur at the 53rd percentile with three stars and Lathrop at the 7th percentile with zero stars.
Results changed unevenly from 2024–2025 to 2025–2026: MacArthur fell 2 points in ELA and 3 in math but rose 2 in science; Lathrop fell 2 in ELA and 5 in science but gained 2 in math. Across the two schools, the average shortfall from the state widened by 2 points in ELA, 2 in math, and 5 in science. Context also differs: in 2024–2025, 82% of MacArthur students and 97% of Lathrop students were free/reduced lunch eligible. In 2025–2026, chronic absenteeism was 10% at MacArthur and 18% at Lathrop, matching the state rate. MacArthur had more students (1,005 versus 584) and a higher 2024–2025 student-teacher ratio (22.4 versus 17.5); these measures describe differences, not causes.
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