Summary
D. J. Sedgwick Elementary serves 407 students in grades K–5 in Cupertino, in the Cupertino Union district. SchoolDigger ranked it 559th of 5,804 California schools in 2025–26, at the 90th percentile with five stars; the district ranked 38th of 968. The key point for families is that Sedgwick is well above state proficiency levels, but its results are below both the district and nearby K–5 averages in all three tested subjects.
Math is Sedgwick’s relative bright spot, while ELA is its largest local shortfall. In 2025–26, proficiency was 76% in math, 69% in ELA and 66% in science. Those results were respectively 38, 20 and 30 percentage points above the state, but 7, 10 and 10 points below the district. Compared with the average of eight nearby K–5 schools, Sedgwick was lower by 5 points in math, 7 in ELA and 7 in science. Among those nine schools, Sedgwick ranked fourth-lowest in math and third-lowest in ELA and science. The grade-level picture is uneven: third-grade ELA was 59%, below the nearby average of 71%, while fourth-grade math was 83%, about 2 points above the nearby average.
Results have shifted over time: from 2022–23 to 2025–26, ELA proficiency fell 10 points and math fell 3, while science rose 5; the school’s advantage over the state narrowed in all three subjects. Sedgwick’s SchoolDigger percentile also slipped from 96 in 2023–24 to 90 in 2025–26, though it retained five stars; nearby K–5 schools averaged the 93rd percentile. In 2024–25, 27% of students were free/reduced lunch eligible, compared with a 19% average at nearby K–5 schools, and the student-teacher ratio was 21.5:1 versus a nearby average of 22.4:1. SchoolDigger’s statewide ranking for “Asian Students” was at the 62nd percentile, 28 points below the school’s overall percentile. Its ranking for “Low Socio Economic Status Students” fell from the 92nd percentile in 2023–24 to the 79th in 2025–26.
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