Summary:
ZIP code 94518 has three K–5 elementary schools: El Monte Elementary, Ygnacio Valley Elementary and Woodside Elementary. In 2025–2026, their average proficiency was about 28% in ELA, 28% in math and 25% in science, compared with state results of 49%, 38% and 36%. The schools’ results vary considerably, so a ZIP-code average misses the most important point: achievement differs substantially from one school to another.
El Monte leads in math, with 36% proficient—4 percentage points ahead of Woodside and 19 points ahead of Ygnacio Valley—and narrowly leads all-grades ELA, where it and Woodside each scored about 35%. Woodside leads science at 31%, just above El Monte’s 30%. Ygnacio Valley is lowest in all three subjects, at 15% in ELA, 17% in math and 15% in science. Its scores were 35, 22 and 21 percentage points below state results, respectively; even the two higher-scoring schools were below state results in every subject.
Recent results show mixed progress: from 2024–2025 to 2025–2026, the schools’ average ELA proficiency fell by 4 percentage points, while math and science each rose by about 1 point. The average gap with the state widened in all three subjects, most in ELA, from 16 to 21 points. SchoolDigger’s latest ratings were 41st percentile and 2 stars for El Monte, 36th percentile and 2 stars for Woodside, and 5th percentile and 0 stars for Ygnacio Valley; their rankings changed by +14, −17 and −13 percentile points, respectively, since 2023–2024. Grade-level results can also change the comparison: Woodside led 5th-grade ELA at 46%, versus El Monte’s 36%, while El Monte led 5th-grade math at 35%. As context, in 2024–2025, free/reduced lunch eligible students made up 65% at El Monte, 88% at Ygnacio Valley and 61% at Woodside; these figures describe the schools, not the cause of their results.
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