Schools in Zip Code 94803

The six schools in ZIP code 94803 include four K–6 elementary schools, one middle school and one high school, all in West Contra Costa Unified. In 2025–2026, the simple average across the six schools was 32% in English language arts (ELA), 25% in math and 22% in science, below state rates of 49%, 38% and 36%, respectively. The central takeaway is that results vary widely between schools, while the area’s average falls short of the state in every subject.

Olinda Elementary led all three subjects, with 50% in ELA, 43% in math and 33% in science; it was the only school above the state rate in ELA and math. At the low end, Betty Reid Soskin Middle had the lowest ELA result at 25%, while Valley View Elementary had the lowest math and science results, at 15% and 8%. The highest-to-lowest spread was 26 points in ELA, 28 in math and 25 in science. Grade-matched elementary results also show variation: Olinda led grades 4–6 in ELA and math, while Valley View led grade 3 ELA and was nearly tied with Olinda in grade 3 math.

Recent changes were mixed: from 2024–2025 to 2025–2026, the six-school average was nearly flat in ELA, rose 4 points in math and rose 2 in science. The average math gap with the state narrowed, but the ELA and science gaps widened. SchoolDigger’s ranking for Olinda held at the 62nd percentile from 2023–2024 to 2025–2026, while Valley View dropped from the 37th to the 21st percentile. As context, for 2024–2025, free/reduced lunch eligible measures were 40% at Olinda and 65%–68% at the other three elementary schools; this difference is an observation, not an explanation for the scores.