Summary:
ZIP code 94070 has nine schools—seven elementary and two middle schools, with no high schools—and reported enrollment of 3,252 students. The schools’ 2025–26 results are strong compared with California overall: average proficiency was 81% in ELA, 83% in math, and 71% in science, versus state results of 49%, 38%, and 36%. The most important finding is that every reported school result exceeded the state result, even though performance varies noticeably among local schools.
Arundel Elementary is the clearest high scorer, leading 2025–26 math at 97% and ELA at 87%; its math score was 14 percentage points above the eight-school average. At the other end, Arroyo had the lowest reported results in all three subjects: 77% in ELA, 75% in math, and 60% in science. Those scores were still above state results by 28, 37, and 24 percentage points, respectively. Among middle schools, Central Middle led reported science at 81%, while Tierra Linda Middle narrowly led all-grades ELA; their results round to 86% each.
Recent changes are mixed: Heather Elementary gained 14 percentage points in ELA and 12 in math from 2024–25 to 2025–26, while Arundel’s ELA fell 9 points even as its math rose 4. Across comparable schools, average ELA was nearly unchanged and math rose 1 point; science fell 4 points as the state science result rose 3. SchoolDigger ranked Tierra Linda 42nd and Central 52nd among 2,703 schools statewide, placing both in the 98th percentile. As context, all nine schools reported free/reduced lunch eligible for 2024–25, ranging from 4% at San Carlos Charter Learning Center to 12% at Brittan Acres Elementary; this measure does not explain test results. San Carlos Charter Learning Center’s latest supplied scores are from 2024–25, so they are not directly comparable with the 2025–26 results.
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