Summary:
ZIP code 95315 has five schools in Delhi Unified, serving grades K–12: three K–6 elementary schools, one middle school for grades 7–8, and one high school for grades 9–12. In 2025–2026, the elementary schools’ average proficiency was 34% in math, 34% in ELA, and 17% in science, compared with statewide results of 38%, 49%, and 36%, respectively. The clearest elementary standout is Harmony Elementary, which led its elementary peers in ELA and math but ranked lowest among them in science.
Harmony Elementary scored 48% in ELA and 45% in math, well ahead of Schendel Elementary (29% and 27%) and El Capitan Elementary (26% and 31%). In science, the order reversed: El Capitan Elementary led at 20%, while Harmony Elementary had 14%. Among the secondary schools, Delhi High outperformed Delhi Middle in all three all-grades subjects, though both were below state results. Delhi High also reported a 99% graduation rate, compared with 88% statewide, and a 0% dropout rate versus 8% statewide.
Recent changes were mixed: elementary-school averages fell by 4 percentage points in ELA, 4 in math, and 2 in science, while state results rose in all three subjects. Delhi High improved by 1 point in ELA, 12 in math, and 5 in science. SchoolDigger ranked Harmony Elementary at the 59th percentile statewide among elementary schools, compared with the 23rd percentile for Schendel Elementary and 26th for El Capitan Elementary. In 2024–2025, student-teacher ratios ranged from 16.3 at Schendel Elementary to 18.8 at Harmony Elementary. That year, Harmony Elementary and El Capitan Elementary reported 84% and 91% free/reduced lunch eligible, while Schendel Elementary reported 54% directly certified for free meals; these are different measures. Results compare schools at the school level and do not show what caused changes.
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