Summary:
The supplied list for zip code 92009 contains 22 school entries—15 elementary, three middle, three conventional high schools and one alternative school—serving students from elementary through high school; the summary says 23, so one school is not represented in the entries. The clearest overall finding is that average proficiency is well above state results at every level, but elementary-school results vary widely: fifth-grade school averages are 79% in ELA, 68% in math and 63% in science, versus 49%, 37% and 35% statewide, while the gaps between the highest- and lowest-scoring elementary schools are 38, 44 and 40 percentage points.
Among elementary schools, Poinsettia Elementary leads fifth-grade ELA at 91%, Kelly Elementary narrowly leads math at 79%, and La Costa Heights Elementary leads science at 79%; Jefferson Elementary is lowest in all three, at 53%, 35% and 39%. Aviara Oaks Middle leads all subjects among middle schools, while Valley Middle is lowest in ELA and science and Calavera Hills Middle is lowest in math. At the high-school level, La Costa Canyon High leads ELA at 82%, and Sage Creek High leads math at 60% and science at 68%; Carlsbad High is lowest in each, but still exceeds state results.
Recent movement is strongest at the conventional high schools: their average scores rose about 3 percentage points in ELA, 3 in math and 7 in science from 2024–2025 to 2025–2026. La Costa Canyon High made especially broad gains—8 points in ELA, 7 in math and 12 in science—while middle-school science averages fell 4 points, including an 11-point drop at Valley Middle. SchoolDigger ranks Pacific Rim Elementary at the 98th percentile and Sage Creek High at the 96th percentile. As context, reported free/reduced lunch eligible figures for sy 2024–2025 range from 5% at El Camino Creek Elementary to 54% at Jefferson Elementary; these figures do not sort schools into a simple performance pattern.
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