Summary:
Schools in zip code 94503 include four schools serving 3,685 students: two elementary schools, a middle school and a high school, spanning kindergarten through grade 12. In 2025–2026, the schools’ unweighted average proficiency was 57% in ELA, 40% in math and 41% in science, compared with state results of 49%, 38% and 36%. Grade-level comparisons also show differences between the elementary schools and strong results from the middle school. The clearest overall standout is Pleasant Hill Middle, which led in ELA and science and exceeded the state in every reported grade-level comparison.
Pleasant Hill Middle had the highest all-grade ELA result at 64%—15 percentage points above the state—and the highest science result at 49%, 13 points above. Canyon Oaks Elementary led all schools in math at 47%, 9 points above the state. At the lower end, American Canyon High had the lowest math result, 28%, or 11 points below the state, though its ELA result was 62%, 13 points above. Napa Junction Elementary had the lowest ELA result at 48%, 1 point below the state. Elementary results vary by grade: Canyon Oaks led ELA in grades 3–5 and math in grades 4–5, while Napa Junction led grade 3 math and grade 5 science.
Average results improved from 2024–2025 to 2025–2026: the four-school gains were 2 points in ELA, 1 in math and 6 in science. Individual results differed: American Canyon’s ELA and math each fell by about 3 and 1 points, while Napa Junction gained 7 points in math and 12 in science. SchoolDigger ranks Pleasant Hill Middle at the 80th percentile with four stars; the other schools are at the 59th–67th percentiles with three stars. Reported student–teacher ratios range from 23.2 at Pleasant Hill to 26.3 at Canyon Oaks. For 2024–2025, the share free/reduced lunch eligible ranged from 44% at Pleasant Hill to 70% at Napa Junction; these figures offer context, not an explanation for school results.
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