Summary:
ZIP code 94531 has 10 schools—six elementary, two middle and two high—covering grades K–12, with results supplied for 2024–25 and 2025–26. The equal-weighted school averages are below the state in every subject: about 33% in ELA versus 49% statewide, 20% in math versus 38%, and 19% in science versus 36%. The most important finding is how much results vary from one school to another: the spread between the highest and lowest results is 44 points in ELA, 26 in math and 26 in science.
Dozier-Libbey Medical High stands out in ELA, with 65% proficiency—16 points above the state result and well ahead of Deer Valley High at 50%. Thomas Gaines Virtual Academy leads reported math and science results at 34% and 35%, although both are below state averages. Among elementary schools, Diablo Vista Elementary leads all three subjects, with 42% in ELA, 32% in math and 29% in science. At the lower end, Grant Elementary has the lowest ELA result at 21%, Black Diamond Middle the lowest math at 8%, and Jack London Elementary the lowest reported science at 9%.
Recent changes are mixed: the school-average ELA result slipped by about 1 point from 2024–25 to 2025–26, while math rose by about 1 point and science by about 1 point; state science rose by about 3 points. Thomas Gaines improved notably—5 points in ELA, 8 in math and 17 in science. SchoolDigger ranks Dozier-Libbey at the 72nd percentile statewide, compared with the 6th for Carmen Dragon Elementary and the 7th for Grant. The free/reduced lunch eligible measure for 2024–25 ranges from 61% at Diablo Vista to 90% at Thomas Gaines, whose student-teacher ratio is 17.4; its chronic absenteeism is also notably high at 57%, versus 18% statewide. These measures offer useful context, but do not by themselves explain achievement differences.
Thank you for your feedback!