Summary:
ZIP code 91108 has two K–5 elementary schools, Carver Elementary and Valentine Elementary, in San Marino Unified. Both schools’ 2025–26 proficiency rates are well above California’s in English language arts (ELA), math, and science. The two-school averages are 86% in ELA, 88% in math, and 73% in science, compared with state rates of 49%, 38%, and 36%. The most important finding is the especially large math advantage: the schools’ average is 49 percentage points above the state.
Neither school leads in every subject: Carver has the edge in ELA and science, while Valentine leads in math. Their all-grades ELA results are close—87% at Carver and 86% at Valentine—and Valentine’s 88% in math is about 1 point above Carver’s 87%. Science is the clearest difference: Carver’s 76% is 6 points above Valentine’s 70%. Grade-level ELA results add nuance: Valentine leads third grade by 6 points, but Carver leads fifth grade by 7 points. SchoolDigger ranks Carver 46th of 5,804 schools statewide (99th percentile) and Valentine 95th (98th percentile).
Recent changes are mixed, with science the main concern—especially at Valentine. From 2024–25 to 2025–26, the pair’s average ELA result fell by 3 percentage points and science by 7, while math rose by 2. Valentine’s science score dropped 11 points, from 81% to 70%; Carver’s fell 2 points, from 78% to 76%. Both schools nevertheless remain well above state science proficiency. In 2024–25, Carver enrolled 777 students and had a student-teacher ratio of 21.5; Valentine enrolled 711 and had a ratio of 20.9. Their reported free/reduced lunch-eligible shares were similar that year: 11% at each school. These figures offer context, but the schools’ subject strengths differ rather than showing one consistent leader.
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