San Marino Unified

San Marino Unified includes four schools serving grades K–12, with 3,083 students across two elementary schools, a middle school and a high school. In 2025–2026, all four schools were well above California’s proficiency results in ELA, math and science. The clearest shared strength is math: the schools averaged 87% proficient, 49 points above the state, and their results were clustered within just 3 points of one another.

San Marino High stands out in ELA and science, leading the group at 89% and 80% proficient; it was 3 points above the four-school ELA average and 4 points above the science average. Valentine Elementary led math at 88%, while Carver Elementary was close behind at 87%. Huntington Middle had the lowest ELA result, 83%—6 points below the leader—but scored 88% in math and 79% in science. Science varies most across schools: Valentine’s 70% was 6 points below the group average, while San Marino High’s 80% was 4 points above it. Even the lowest result in each subject exceeded California’s by at least 34 points.

Recent changes favor math: the four-school average rose 3 points from 2024–2025 to 2025–2026, compared with a 1-point state increase; ELA was essentially unchanged as the state edged up, and science was also nearly flat while the state gained 3 points. San Marino High improved in all three subjects, while Valentine’s science fell 11 points. SchoolDigger gives all four schools five stars and ranks them in the 98th or 99th statewide percentile; its district rating is five stars and the 99th percentile. The schools report free/reduced lunch eligible figures for 2024–2025 ranging from 11% to 14%; Huntington also has the highest student–teacher ratio, 23, compared with 20.4–21.5 at the others. These are contextual measures, not explanations for achievement. The test-score comparisons cover two years, and All Grades results span different grade levels.