Schools in Zip Code 91030

Zip code 91030 includes five schools—three elementary schools, one middle school and one high school—with 4,652 students in the South Pasadena Unified district. Across the schools, 2025–2026 all-grades proficiency averaged 83% in English language arts (ELA), 80% in math and 78% in science, compared with state results of 49%, 38% and 36%. Every school was above the state in all three subjects; the area’s strongest shared finding is how substantially its results exceed state levels.

Marengo Elementary leads the all-grades results in every subject, with 87% in ELA, 89% in math and 83% in science. South Pasadena Senior High is lowest in each, at 81% in ELA, 67% in math and 69% in science. The largest difference is in math: Marengo is 23 percentage points ahead of the high school and 8 points ahead of the next-highest school. Results vary by grade, too: Monterey Hills Elementary leads grade 5 ELA at 88%, while Marengo leads elementary math in grades 3, 4 and 5.

Recent results show broad science improvement, but not a uniform upward trend: the five-school average rose 7 percentage points in science and 1 point in math, while ELA fell 1 point. Monterey Hills had the standout science gain, up 23 points; ELA declined 5 points at Senior High and 4 at Arroyo Vista Elementary. SchoolDigger’s 2025–2026 rankings place Marengo 33rd, Monterey Hills 147th and Arroyo Vista 148th among elementary schools, South Pasadena Middle 46th, and Senior High 88th in their respective statewide groups. School characteristics do not show a simple pattern with results: elementary student–teacher ratios range from 21.9 at Monterey Hills to 25.2 at Marengo and Arroyo Vista. All schools report free/reduced lunch eligible figures for 2024–2025, ranging from 13% at Marengo to 17% at Arroyo Vista; these are context, not an explanation for performance.