Schools in Zip Code 93428

ZIP code 93428 has three public schools serving kindergarten through grade 12: Cambria Grammar (K–5), Santa Lucia Middle (6–8), and Coast Union High (9–12), with 473 students combined. In 2025–2026, their average proficiency was 40% in English language arts, 33% in science, and 23% in math; statewide rates were 49%, 36%, and 38%, respectively. Science was closest to the state result, while the largest shared concern was math: the schools’ average was 16 points below the state.

The schools have different strengths: Cambria led in science at 43%, 7 points above the state, and in math at 31%, though still 8 points below the state. Coast Union had the highest ELA result, 44%, but the lowest math result, 11%—27 points below the state. Santa Lucia had the lowest ELA rate at 37% and tied Coast Union in science at 28%; its math result was 27%. Grade-level figures show why schoolwide results can hide important differences: Cambria’s fifth-grade math proficiency was 48%, compared with 15% in third grade. Coast Union also had strong completion outcomes, with a 97% graduation rate versus 88% statewide, despite its low math result.

Average results improved from 2024–2025 to 2025–2026 in ELA by 7 points and science by 9 points, but math rose only 1 point. Cambria and Coast Union improved in all three subjects, while Santa Lucia declined in all three, including 12 points in science. SchoolDigger’s statewide percentile rankings rose from 41st to 46th for Cambria and 28th to 37th for Coast Union, while Santa Lucia fell from 58th to 39th. For context, each school reported free/reduced lunch eligible for 2024–2025: 85% at Cambria, 89% at Coast Union, and 88% at Santa Lucia. Coast Union had the lowest student-teacher ratio at 10.1, compared with 15.5 at Cambria and 11.5 at Santa Lucia; these figures alone do not explain differences in results. All-grades comparisons combine different grade spans, and test trends cover only two years.